diff --git a/leenkx/blender/lnx/props.py b/leenkx/blender/lnx/props.py
index 7ab49fb..e8babe4 100644
--- a/leenkx/blender/lnx/props.py
+++ b/leenkx/blender/lnx/props.py
@@ -613,7 +613,7 @@ def update_leenkx_world():
     if bpy.data.filepath != '' and (file_version < sdk_version or wrd.lnx_commit != lnx_commit):
         # This allows for seamless migration from earlier versions of Leenkx
         for rp in wrd.lnx_rplist:  # TODO: deprecated
-            if rp.rp_gi != 'Off':
+            if hasattr(rp, 'rp_gi') and rp.rp_gi != 'Off':
                 rp.rp_gi = 'Off'
                 rp.rp_voxels = rp.rp_gi