diff --git a/.gitignore b/.gitignore
index 2536c50..6aaffa4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,7 @@ build/
 _dist/
 _build/
 *.ini
-
+*.old
 # Python cache files
 __pycache__/
 *.py[cod]
\ No newline at end of file
diff --git a/gitutility/core/remote_actions.py b/gitutility/core/remote_actions.py
index 627d6aa..5f88ace 100644
--- a/gitutility/core/remote_actions.py
+++ b/gitutility/core/remote_actions.py
@@ -548,6 +548,7 @@ class RemoteActionHandler:
             # --- Analyze Result ---
             stdout_full: str = push_result.stdout if push_result.stdout else ""
             stderr_full: str = push_result.stderr if push_result.stderr else ""
+            stderr_lower: str = stderr_full.lower()
             combined_output_lower: str = (stdout_full + stderr_full).lower()
 
             if push_result.returncode == 0: