diff --git a/schemas/articles/articles.py b/schemas/articles/articles.py
index 1077db9..976d4fd 100644
--- a/schemas/articles/articles.py
+++ b/schemas/articles/articles.py
@@ -838,7 +838,7 @@ class MouvementStockLigneRequest(BaseModel):
     )
 
     class Config:
-        schema_extra = {
+        json_schema_extra = {
             "example": {
                 "article_ref": "ARTS-001",
                 "quantite": 50.0,