diff --git a/docs/en/docs/tutorial/path-params.md b/docs/en/docs/tutorial/path-params.md
index a923df838..b99355bbb 100644
--- a/docs/en/docs/tutorial/path-params.md
+++ b/docs/en/docs/tutorial/path-params.md
@@ -178,7 +178,7 @@ GET /models/vgg16
 
 FastAPI returns a clear validation error:
 
-```
+```json
 {
   "detail": [
     {