diff --git a/tiled/_tests/conftest.py b/tiled/_tests/conftest.py
index e684ccb41..f9aa778d2 100644
--- a/tiled/_tests/conftest.py
+++ b/tiled/_tests/conftest.py
@@ -86,7 +86,7 @@ def tmpdir_module(request, tmpdir_factory):
 
     def poll_enumerate():
         logger = logging.getLogger(__name__)
-        msg_level = int(logging.INFO + logging.WARNING)//2
+        msg_level = int(logging.INFO + logging.WARNING) // 2
         while True:
             time.sleep(1)
             logger.log(msg_level, "THREAD COUNT = %d", len(threading.enumerate()))