diff --git a/crates/milli/src/error.rs b/crates/milli/src/error.rs
index 53d9827ac..3a9c81e10 100644
--- a/crates/milli/src/error.rs
+++ b/crates/milli/src/error.rs
@@ -122,7 +122,7 @@ and can not be more than 512 bytes.", .document_id.to_string()
     #[error("The `_vectors` field in the document with id: `{document_id}` is not an object. Was expecting an object with a key for each embedder with manually provided vectors, but instead got `{value}`")]
     InvalidVectorsMapType { document_id: String, value: Value },
     #[error("Bad embedder configuration in the document with id: `{document_id}`. {error}")]
-    InvalidVectorsEmbedderConf { document_id: String, error: deserr::errors::JsonError },
+    InvalidVectorsEmbedderConf { document_id: String, error: String },
     #[error("{0}")]
     InvalidFilter(String),
     #[error("Invalid type for filter subexpression: expected: {}, found: {1}.", .0.join(", "))]
diff --git a/crates/milli/src/vector/parsed_vectors.rs b/crates/milli/src/vector/parsed_vectors.rs
index 6ae6c1c9e..5f8b30f1f 100644
--- a/crates/milli/src/vector/parsed_vectors.rs
+++ b/crates/milli/src/vector/parsed_vectors.rs
@@ -343,7 +343,7 @@ impl Error {
             Error::InvalidEmbedderConf { error } => {
                 crate::Error::UserError(UserError::InvalidVectorsEmbedderConf {
                     document_id,
-                    error,
+                    error: error.to_string(),
                 })
             }
             Error::InternalSerdeJson(error) => {