diff --git a/src/backend/langflow/api/validate.py b/src/backend/langflow/api/validate.py
index 8b11042d3..15600f9f7 100644
--- a/src/backend/langflow/api/validate.py
+++ b/src/backend/langflow/api/validate.py
@@ -33,4 +33,4 @@ def post_validate_prompt(prompt: Prompt):
         return validate_prompt(prompt.template)
     except Exception as e:
         logger.exception(e)
-        return HTTPException(status_code=500, detail=str(e))
+        raise HTTPException(status_code=500, detail=str(e)) from e