diff --git a/pyfakefs/fake_filesystem_unittest.py b/pyfakefs/fake_filesystem_unittest.py
index 50665d0b..ece2dd8c 100644
--- a/pyfakefs/fake_filesystem_unittest.py
+++ b/pyfakefs/fake_filesystem_unittest.py
@@ -1098,8 +1098,8 @@ def cleanup(self) -> None:
                 # in the unlikely case that the cache is turned off,
                 # we have to reload all modules
                 # if not self._patcher.use_cache or name in Patcher.CACHED_MODULES:
-                # reload(sys.modules[name])
-                del sys.modules[name]
+                reload(sys.modules[name])
+                # del sys.modules[name]
 
     def needs_patch(self, name: str) -> bool:
         """Check if the module with the given name shall be replaced."""