diff --git a/cibuildwheel/util.py b/cibuildwheel/util.py
index 0f262729..e05aa494 100644
--- a/cibuildwheel/util.py
+++ b/cibuildwheel/util.py
@@ -437,7 +437,7 @@ def print_new_wheels(msg: str, output_dir: Path) -> Iterator[None]:
     ]
 
     if len(new_contents) == 0:
-        print('No new wheels')
+        print("No new wheels")
         return
 
     max_name_len = max(len(f.name) for f in new_contents)