diff --git a/add_mesh_BoltFactory/Boltfactory.py b/add_mesh_BoltFactory/Boltfactory.py
index 330df8ae15304f7b04df22cb1c8d4fb9419ccaf1..f2646704467b1a757ae1a516ac6a67bacf347109 100644
--- a/add_mesh_BoltFactory/Boltfactory.py
+++ b/add_mesh_BoltFactory/Boltfactory.py
@@ -481,7 +481,7 @@ def Bolt_contex_menu(self, context):
     obj = context.object
     layout = self.layout
 
-    if 'Bolt' in obj.data.keys():
+    if obj.data is not None and 'Bolt' in obj.data.keys():
         props = layout.operator("mesh.bolt_add", text="Change Bolt")
         props.change = True
         for prm in BoltParameters():
diff --git a/add_mesh_extra_objects/__init__.py b/add_mesh_extra_objects/__init__.py
index fa7918efd22bf31c055d6faa7079918b8f35f011..8a697ae5f5f839ee20c3be37ed5d397efb3601ae 100644
--- a/add_mesh_extra_objects/__init__.py
+++ b/add_mesh_extra_objects/__init__.py
@@ -249,7 +249,7 @@ def Extras_contex_menu(self, context):
     obj = context.object
     layout = self.layout
 
-    if obj == None:
+    if obj == None or obj.data is None:
         return
 
     if 'Gear' in obj.data.keys():
diff --git a/add_mesh_geodesic_domes/__init__.py b/add_mesh_geodesic_domes/__init__.py
index 00ee10aaef334f3cacd32deea2274bbbddf0bd71..e88f318483ab2ee78ba08fb77fadafb5a3518994 100644
--- a/add_mesh_geodesic_domes/__init__.py
+++ b/add_mesh_geodesic_domes/__init__.py
@@ -54,7 +54,7 @@ def Geodesic_contex_menu(self, context):
     obj = context.object
     layout = self.layout
 
-    if 'GeodesicDome' in obj.data.keys():
+    if obj.data is not None and 'GeodesicDome' in obj.data.keys():
         props = layout.operator("mesh.generate_geodesic_dome", text="Change Geodesic Dome")
         props.change = True
         for prm in third_domes_panel_271.GeodesicDomeParameters():