diff --git a/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py b/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py
index 5dd3334ee4..324fc7e3ca 100644
--- a/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py
+++ b/src/Mod/Fem/femguiobjects/_ViewProviderFemMaterial.py
@@ -284,7 +284,7 @@ class _TaskPanelFemMaterial:
     def print_material_params(self, material=None):
         # in rare cases we gone pass a empty dict
         # in such a case a empty dict should be printed and not self.material thus we check for None
-        if material is None: 
+        if material is None:
             material = self.material
         if not material:
             # empty dict