diff --git a/src/Mod/Fem/_TaskPanelFemBeamSection.py b/src/Mod/Fem/_TaskPanelFemBeamSection.py
index b8ed85580..1fad27b36 100644
--- a/src/Mod/Fem/_TaskPanelFemBeamSection.py
+++ b/src/Mod/Fem/_TaskPanelFemBeamSection.py
@@ -108,7 +108,7 @@ class _TaskPanelFemBeamSection:
             item_name = i[0].Name + ':' + i[1]
             items.append(item_name)
         for listItemName in sorted(items):
-            listItem = QtGui.QListWidgetItem(listItemName, self.form.list_References)  # listItem =   is needed
+            self.form.list_References.addItem(listItemName)
 
 
 class ReferenceShapeSelectionObserver:
diff --git a/src/Mod/Fem/_TaskPanelFemShellThickness.py b/src/Mod/Fem/_TaskPanelFemShellThickness.py
index 36f1e1d2c..e507f3b9d 100644
--- a/src/Mod/Fem/_TaskPanelFemShellThickness.py
+++ b/src/Mod/Fem/_TaskPanelFemShellThickness.py
@@ -108,7 +108,7 @@ class _TaskPanelFemShellThickness:
             item_name = i[0].Name + ':' + i[1]
             items.append(item_name)
         for listItemName in sorted(items):
-            listItem = QtGui.QListWidgetItem(listItemName, self.form.list_References)  # listItem =   is needed
+            self.form.list_References.addItem(listItemName)
 
 
 class ReferenceShapeSelectionObserver:
diff --git a/src/Mod/Fem/_TaskPanelMechanicalMaterial.py b/src/Mod/Fem/_TaskPanelMechanicalMaterial.py
index acc557483..b5418ac53 100644
--- a/src/Mod/Fem/_TaskPanelMechanicalMaterial.py
+++ b/src/Mod/Fem/_TaskPanelMechanicalMaterial.py
@@ -276,7 +276,7 @@ class _TaskPanelMechanicalMaterial:
                 item_name = ref[0].Name
             items.append(item_name)
         for listItemName in sorted(items):
-            listItem = QtGui.QListWidgetItem(listItemName, self.form.list_References)  # listItem =   is needed
+            self.form.list_References.addItem(listItemName)
 
 
 class ReferenceShapeSelectionObserver: