diff --git a/add_mesh_extra_objects/add_mesh_honeycomb.py b/add_mesh_extra_objects/add_mesh_honeycomb.py
index df60671b1f26c542180263dd7d44cbfd7ed9ad9f..3e30afe77c028ba891290ec3dbd4f52ab19fb8ba 100644
--- a/add_mesh_extra_objects/add_mesh_honeycomb.py
+++ b/add_mesh_extra_objects/add_mesh_honeycomb.py
@@ -192,7 +192,12 @@ class add_mesh_honeycomb(bpy.types.Operator):
         name = 'Num of cols', default = 2,
         min = 1, max = 100,
         description='Number of the columns')
-
+    layers = BoolVectorProperty(
+            name="Layers",
+            size=20,
+            subtype='LAYER',
+            options={'HIDDEN', 'SKIP_SAVE'},
+            )
     def fix_edge(self, context):
         m = edge_max(self.diam)
         if self.edge > m: self.edge = m
diff --git a/add_mesh_extra_objects/add_mesh_menger_sponge.py b/add_mesh_extra_objects/add_mesh_menger_sponge.py
index 43c8c57d5d70e88ee958f126b5d639a44c2f0e1f..1e58ebce15bbff2bcc541e93a901e97944182879 100644
--- a/add_mesh_extra_objects/add_mesh_menger_sponge.py
+++ b/add_mesh_extra_objects/add_mesh_menger_sponge.py
@@ -4,7 +4,7 @@
 
 import bpy
 
-from bpy.props import IntProperty, BoolProperty, FloatVectorProperty, FloatProperty
+from bpy.props import IntProperty, BoolProperty, BoolVectorProperty, FloatVectorProperty, FloatProperty
 
 import bpy
 import mathutils
@@ -166,7 +166,12 @@ class AddMengerSponge(bpy.types.Operator):
         name="Rotation",
         subtype='EULER',
         )
-
+    layers = BoolVectorProperty(
+            name="Layers",
+            size=20,
+            subtype='LAYER',
+            options={'HIDDEN', 'SKIP_SAVE'},
+            )
     def execute(self, context):
         sponger = MengerSponge(self.level)
         vertices, faces = sponger.create(self.radius * 2, self.radius * 2)