diff --git a/aider/models.py b/aider/models.py
index 83fb71344..a7286c23f 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -135,13 +135,13 @@ MODEL_SETTINGS = [
     # Gemini
     ModelSettings(
         "gemini/gemini-1.5-pro",
-        "udiff",
+        "whole",
         use_repo_map=True,
         send_undo_reply=True,
     ),
     ModelSettings(
         "gemini/gemini-1.5-pro-latest",
-        "udiff",
+        "whole",
         use_repo_map=True,
         send_undo_reply=True,
     ),