diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 32c0d72b7..76081a916 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -1328,6 +1328,8 @@ class Coder:
             commit_hash, commit_message = res
             self.last_aider_commit_hash = commit_hash
             self.last_aider_commit_message = commit_message
+            if self.show_diffs:
+                self.commands.cmd_diff()
 
             return self.gpt_prompts.files_content_gpt_edits.format(
                 hash=commit_hash,
diff --git a/aider/commands.py b/aider/commands.py
index c42e52c61..301029ca3 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -356,7 +356,7 @@ class Commands:
         if self.coder.main_model.send_undo_reply:
             return prompts.undo_command_reply
 
-    def cmd_diff(self, args):
+    def cmd_diff(self, args=""):
         "Display the diff of the last aider commit"
         if not self.coder.repo:
             self.io.tool_error("No git repository found.")