diff --git a/src/Mod/Material/MaterialEditor.py b/src/Mod/Material/MaterialEditor.py
index f1465124cd..931635d017 100644
--- a/src/Mod/Material/MaterialEditor.py
+++ b/src/Mod/Material/MaterialEditor.py
@@ -67,7 +67,7 @@ class MaterialEditor:
         buttonSave = widget.ButtonSave
         comboMaterial = widget.ComboMaterial
         treeView = widget.treeView
-        
+
         # temporarily hide preview fields, as they are not used yet
         # TODO : implement previews
         widget.PreviewGroup.hide()