diff --git a/crates/dump/src/lib.rs b/crates/dump/src/lib.rs
index 4e2d6ac2f..ee63f7048 100644
--- a/crates/dump/src/lib.rs
+++ b/crates/dump/src/lib.rs
@@ -326,6 +326,7 @@ pub(crate) mod test {
                 index_uids: maplit::btreemap! { "doggo".to_string() => 1 },
                 progress_trace: Default::default(),
                 write_channel_congestion: None,
+                internal_database_sizes: Default::default(),
             },
             enqueued_at: Some(BatchEnqueuedAt {
                 earliest: datetime!(2022-11-11 0:00 UTC),
diff --git a/crates/meilisearch-types/src/batches.rs b/crates/meilisearch-types/src/batches.rs
index 904682585..c7b9d6cfa 100644
--- a/crates/meilisearch-types/src/batches.rs
+++ b/crates/meilisearch-types/src/batches.rs
@@ -64,4 +64,6 @@ pub struct BatchStats {
     pub progress_trace: serde_json::Map<String, serde_json::Value>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub write_channel_congestion: Option<serde_json::Map<String, serde_json::Value>>,
+    #[serde(default, skip_serializing_if = "serde_json::Map::is_empty")]
+    pub internal_database_sizes: serde_json::Map<String, serde_json::Value>,
 }