diff --git a/glue/config_gen.py b/glue/config_gen.py
old mode 100755
new mode 100644
diff --git a/glue/core/state_objects.py b/glue/core/state_objects.py
index d52bf6e41..6262964ed 100644
--- a/glue/core/state_objects.py
+++ b/glue/core/state_objects.py
@@ -332,11 +332,9 @@ def update_values(self, force=False, use_default_modifiers=False, **properties):
 
         self._previous_units = display_units
 
-        if (
-                set(properties) == {'display_units'} and
+        if (set(properties) == {'display_units'} and
                 self.lower is not None and
-                self.upper is not None
-            ):
+                self.upper is not None):
 
             converter = UnitConverter()
 
diff --git a/glue/main.py b/glue/main.py
old mode 100755
new mode 100644
diff --git a/glue/viewers/matplotlib/tests/test_state.py b/glue/viewers/matplotlib/tests/test_state.py
old mode 100755
new mode 100644