diff --git a/third_party/bigframes_vendored/pandas/core/indexes/base.py b/third_party/bigframes_vendored/pandas/core/indexes/base.py
index 87e6e5e965..c48c07424d 100644
--- a/third_party/bigframes_vendored/pandas/core/indexes/base.py
+++ b/third_party/bigframes_vendored/pandas/core/indexes/base.py
@@ -987,7 +987,7 @@ def drop(self, labels) -> Index:
             labels (array-like or scalar):
 
         Returns:
-            Index: Will be same type as self.
+            bigframes.pandas.Index: Will be same type as self.
         """
         raise NotImplementedError(constants.ABSTRACT_METHOD_ERROR_MESSAGE)