diff --git a/aider/io.py b/aider/io.py
index 494e888fd..d0aceed90 100644
--- a/aider/io.py
+++ b/aider/io.py
@@ -256,12 +256,16 @@ class InputOutput:
             style_dict = {}
         if self.pretty and self.user_input_color:
             style_dict.setdefault("", self.user_input_color)
-            style_dict.update({
-                "completion-menu": f"bg:{self.completion_menu_bg_color} {self.completion_menu_color}",
-                "completion-menu.completion.current": (
-                    f"bg:{self.completion_menu_current_bg_color} {self.completion_menu_current_color}"
-                ),
-            })
+            style_dict.update(
+                {
+                    "completion-menu": (
+                        f"bg:{self.completion_menu_bg_color} {self.completion_menu_color}"
+                    ),
+                    "completion-menu.completion.current": (
+                        f"bg:{self.completion_menu_current_bg_color} {self.completion_menu_current_color}"
+                    ),
+                }
+            )
             return Style.from_dict(style_dict)
         else:
             return {}