diff --git a/src/Mod/Fem/Gui/Resources/Fem.qrc b/src/Mod/Fem/Gui/Resources/Fem.qrc
index b97a14de5..16f31cd76 100755
--- a/src/Mod/Fem/Gui/Resources/Fem.qrc
+++ b/src/Mod/Fem/Gui/Resources/Fem.qrc
@@ -13,7 +13,7 @@
         <file>icons/fem-add-material.svg</file>
         <file>icons/fem-add-part.svg</file>
         <file>icons/fem-inp-editor.svg</file>
-        <file>icons/Fem_Material.svg</file>
+        <file>icons/fem-material.svg</file>
         <file>icons/Fem_NewAnalysis.svg</file>
         <file>icons/Fem_Purge_Results.svg</file>
         <file>icons/Fem_Quick_Analysis.svg</file>
diff --git a/src/Mod/Fem/Gui/Resources/icons/Fem_Material.svg b/src/Mod/Fem/Gui/Resources/icons/fem-material.svg
similarity index 100%
rename from src/Mod/Fem/Gui/Resources/icons/Fem_Material.svg
rename to src/Mod/Fem/Gui/Resources/icons/fem-material.svg
diff --git a/src/Mod/Fem/MechanicalMaterial.py b/src/Mod/Fem/MechanicalMaterial.py
index 2e639fa15..8e40f959a 100644
--- a/src/Mod/Fem/MechanicalMaterial.py
+++ b/src/Mod/Fem/MechanicalMaterial.py
@@ -47,7 +47,7 @@ def makeMechanicalMaterial(name):
 class _CommandMechanicalMaterial:
     "the Fem Material command definition"
     def GetResources(self):
-        return {'Pixmap': 'Fem_Material',
+        return {'Pixmap': 'fem-material',
                 'MenuText': QtCore.QT_TRANSLATE_NOOP("Fem_Material", "Mechanical material..."),
                 'Accel': "M, M",
                 'ToolTip': QtCore.QT_TRANSLATE_NOOP("Fem_Material", "Creates or edit the mechanical material definition.")}
@@ -93,7 +93,7 @@ class _ViewProviderMechanicalMaterial:
         vobj.Proxy = self
 
     def getIcon(self):
-        return ":/icons/Fem_Material.svg"
+        return ":/icons/fem-material.svg"
 
     def attach(self, vobj):
         self.ViewObject = vobj