diff --git a/libs/core/langchain_core/_api/internal.py b/libs/core/langchain_core/_api/internal.py
index 2ebf0cc060f..29ae788a80b 100644
--- a/libs/core/langchain_core/_api/internal.py
+++ b/libs/core/langchain_core/_api/internal.py
@@ -30,3 +30,5 @@ def is_caller_internal(depth: int = 2) -> bool:
                 return True
     finally:
         del frame
+
+    return False