diff --git a/aider/main.py b/aider/main.py
index e27948f43..fd2597e3e 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -412,6 +412,7 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
             output=output,
             user_input_color=args.user_input_color,
             tool_output_color=args.tool_output_color,
+            tool_warning_color=args.tool_warning_color,
             tool_error_color=args.tool_error_color,
             completion_menu_color=args.completion_menu_color,
             completion_menu_bg_color=args.completion_menu_bg_color,