diff --git a/archimesh/achm_main_panel.py b/archimesh/achm_main_panel.py
index fda383f45bcfaa909fcdfdce7f0b11b319702b1e..482e26fdef73136f4f852e51ab145fc87ec122b8 100644
--- a/archimesh/achm_main_panel.py
+++ b/archimesh/achm_main_panel.py
@@ -35,6 +35,7 @@ class ARCHIMESH_OT_Hole(Operator):
     bl_label = "Auto Holes"
     bl_description = "Enable windows and doors holes for any selected object (needs wall thickness)"
     bl_category = 'View'
+    bl_options = {'UNDO', 'REGISTER'}
 
     # ------------------------------
     # Execute
@@ -169,6 +170,7 @@ class ARCHIMESH_OT_Pencil(Operator):
     bl_label = "Room from Draw"
     bl_description = "Create a room base on grease pencil strokes (draw from top view (7 key))"
     bl_category = 'View'
+    bl_options = {'UNDO', 'REGISTER'}
 
     # ------------------------------
     # Execute