diff --git a/utils/lit/lit/main.py b/utils/lit/lit/main.py
index 3c49e854067..86db3d8f5ac 100755
--- a/utils/lit/lit/main.py
+++ b/utils/lit/lit/main.py
@@ -124,7 +124,7 @@ def sort_by_incremental_cache(run, litConfig):
         fname = test.getFilePath()
         try:
             index = -os.path.getmtime(fname)
-        except os.error as e:
+        except OSError as e:
             if litConfig.debug:
                 litConfig.note(e)
         return index