diff --git a/meilisearch-core/src/database.rs b/meilisearch-core/src/database.rs
index f66d292f0..8771807f8 100644
--- a/meilisearch-core/src/database.rs
+++ b/meilisearch-core/src/database.rs
@@ -1059,12 +1059,12 @@ mod tests {
             let data = r#"
                 {
                     "rankingRules": [
-                        "_typo",
-                        "_words",
-                        "_proximity",
-                        "_attribute",
-                        "_words_position",
-                        "_exactness",
+                        "typo",
+                        "words",
+                        "proximity",
+                        "attribute",
+                        "words_position",
+                        "exactness",
                         "dsc(release_date)"
                     ],
                     "searchableAttributes": ["name", "release_date"],
diff --git a/meilisearch-http/tests/common.rs b/meilisearch-http/tests/common.rs
index c30888cbe..3e7ca0608 100644
--- a/meilisearch-http/tests/common.rs
+++ b/meilisearch-http/tests/common.rs
@@ -57,13 +57,13 @@ pub fn enrich_server_with_movies_settings(
 ) -> Result<(), Box<dyn Error>> {
     let json = json!({
         "rankingRules": [
-            "_typo",
-            "_words",
-            "_proximity",
-            "_attribute",
-            "_words_position",
+            "typo",
+            "words",
+            "proximity",
+            "attribute",
+            "words_position",
             "dsc(popularity)",
-            "_exactness",
+            "exactness",
             "dsc(vote_average)",
         ],
         "distinctAttribute": null,
diff --git a/meilisearch-http/tests/search.rs b/meilisearch-http/tests/search.rs
index 42fd901e2..20e2d9b63 100644
--- a/meilisearch-http/tests/search.rs
+++ b/meilisearch-http/tests/search.rs
@@ -626,13 +626,13 @@ fn search_with_settings_basic() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "dsc(popularity)",
-        "_exactness",
+        "exactness",
         "dsc(vote_average)"
       ],
       "distinctAttribute": null,
@@ -732,13 +732,13 @@ fn search_with_settings_stop_words() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "dsc(popularity)",
-        "_exactness",
+        "exactness",
         "dsc(vote_average)"
       ],
       "distinctAttribute": null,
@@ -839,13 +839,13 @@ fn search_with_settings_synonyms() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "dsc(popularity)",
-        "_exactness",
+        "exactness",
         "dsc(vote_average)"
       ],
       "distinctAttribute": null,
@@ -951,13 +951,13 @@ fn search_with_settings_ranking_rules() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "asc(vote_average)",
-        "_exactness",
+        "exactness",
         "dsc(popularity)"
       ],
       "distinctAttribute": null,
@@ -1058,13 +1058,13 @@ fn search_with_settings_searchable_attributes() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "dsc(popularity)",
-        "_exactness",
+        "exactness",
         "dsc(vote_average)"
       ],
       "distinctAttribute": null,
@@ -1164,13 +1164,13 @@ fn search_with_settings_displayed_attributes() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "dsc(popularity)",
-        "_exactness",
+        "exactness",
         "dsc(vote_average)"
       ],
       "distinctAttribute": null,
@@ -1235,13 +1235,13 @@ fn search_with_settings_searchable_attributes_2() {
 
     let config = json!({
       "rankingRules": [
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
         "dsc(popularity)",
-        "_exactness",
+        "exactness",
         "dsc(vote_average)"
       ],
       "distinctAttribute": null,
diff --git a/meilisearch-http/tests/settings.rs b/meilisearch-http/tests/settings.rs
index 5062616f9..eccde51c9 100644
--- a/meilisearch-http/tests/settings.rs
+++ b/meilisearch-http/tests/settings.rs
@@ -41,12 +41,12 @@ fn write_all_and_delete() {
 
     let json = json!({
         "rankingRules": [
-            "_typo",
-            "_words",
-            "_proximity",
-            "_attribute",
-            "_words_position",
-            "_exactness",
+            "typo",
+            "words",
+            "proximity",
+            "attribute",
+            "words_position",
+            "exactness",
             "dsc(release_date)",
             "dsc(rank)",
         ],
@@ -126,10 +126,33 @@ fn write_all_and_delete() {
     let res_value: Value = serde_json::from_slice(&buf).unwrap();
 
     let json = json!({
-        "rankingRules": null,
+        "rankingRules": [
+          "typo",
+          "words",
+          "proximity",
+          "attribute",
+          "words_position",
+          "exactness"
+        ],
         "distinctAttribute": null,
-        "searchableAttributes": null,
-        "displayedAttributes": null,
+        "searchableAttributes": [
+          "id",
+          "release_date",
+          "poster",
+          "description",
+          "title",
+          "movie_id",
+          "rank"
+        ],
+        "displayedAttributes": [
+          "movie_id",
+          "description",
+          "poster",
+          "id",
+          "release_date",
+          "rank",
+          "title"
+        ],
         "stopWords": null,
         "synonyms": null,
         "acceptNewFields": true,
@@ -169,12 +192,12 @@ fn write_all_and_update() {
 
     let json = json!({
         "rankingRules": [
-            "_typo",
-            "_words",
-            "_proximity",
-            "_attribute",
-            "_words_position",
-            "_exactness",
+            "typo",
+            "words",
+            "proximity",
+            "attribute",
+            "words_position",
+            "exactness",
             "dsc(release_date)",
             "dsc(rank)",
         ],
@@ -235,12 +258,12 @@ fn write_all_and_update() {
 
     let json_update = json!({
         "rankingRules": [
-            "_typo",
-            "_words",
-            "_proximity",
-            "_attribute",
-            "_words_position",
-            "_exactness",
+            "typo",
+            "words",
+            "proximity",
+            "attribute",
+            "words_position",
+            "exactness",
             "dsc(release_date)",
         ],
         "searchableAttributes": [
@@ -288,12 +311,12 @@ fn write_all_and_update() {
 
     let res_expected = json!({
         "rankingRules": [
-            "_typo",
-            "_words",
-            "_proximity",
-            "_attribute",
-            "_words_position",
-            "_exactness",
+            "typo",
+            "words",
+            "proximity",
+            "attribute",
+            "words_position",
+            "exactness",
             "dsc(release_date)",
         ],
         "distinctAttribute": null,
diff --git a/meilisearch-http/tests/settings_ranking_rules.rs b/meilisearch-http/tests/settings_ranking_rules.rs
index b310df3cd..73ef8c988 100644
--- a/meilisearch-http/tests/settings_ranking_rules.rs
+++ b/meilisearch-http/tests/settings_ranking_rules.rs
@@ -39,12 +39,12 @@ fn write_all_and_delete() {
     // 2 - Send the settings
 
     let json = json!([
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
-        "_exactness",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
+        "exactness",
         "dsc(release_date)",
         "dsc(rank)",
     ]);
@@ -95,7 +95,14 @@ fn write_all_and_delete() {
     block_on(res.into_body().read_to_end(&mut buf)).unwrap();
     let res_value: Value = serde_json::from_slice(&buf).unwrap();
 
-    let json = json!(null);
+    let json = json!([
+      "typo",
+      "words",
+      "proximity",
+      "attribute",
+      "words_position",
+      "exactness"
+    ]);
 
     assert_json_eq!(json, res_value, ordered: false);
 }
@@ -130,12 +137,12 @@ fn write_all_and_update() {
     // 2 - Send the settings
 
     let json = json!([
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
-        "_exactness",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
+        "exactness",
         "dsc(release_date)",
         "dsc(rank)",
     ]);
@@ -167,12 +174,12 @@ fn write_all_and_update() {
     // 4 - Update all settings
 
     let json_update = json!([
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
-        "_exactness",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
+        "exactness",
         "dsc(release_date)",
     ]);
 
@@ -199,12 +206,12 @@ fn write_all_and_update() {
     let res_value: Value = serde_json::from_slice(&buf).unwrap();
 
     let res_expected = json!([
-        "_typo",
-        "_words",
-        "_proximity",
-        "_attribute",
-        "_words_position",
-        "_exactness",
+        "typo",
+        "words",
+        "proximity",
+        "attribute",
+        "words_position",
+        "exactness",
         "dsc(release_date)",
     ]);