diff --git a/leenkx/blender/lnx/make_renderpath.py b/leenkx/blender/lnx/make_renderpath.py
index 46698a7..fa5cb6a 100644
--- a/leenkx/blender/lnx/make_renderpath.py
+++ b/leenkx/blender/lnx/make_renderpath.py
@@ -39,14 +39,15 @@ def add_world_defs():
     # Store contexts
     if rpdat.rp_hdr == False:
         wrd.world_defs += '_LDR'
+        
+    if lnx.utils.get_active_scene().world is not None:
+        if lnx.utils.get_active_scene().world.lnx_light_ies_texture:
+            wrd.world_defs += '_LightIES'
+            assets.add_embedded_data('iestexture.png')
 
-    if lnx.utils.get_active_scene().world.lnx_light_ies_texture == True:
-        wrd.world_defs += '_LightIES'
-        assets.add_embedded_data('iestexture.png')
-
-    if lnx.utils.get_active_scene().world.lnx_light_clouds_texture == True:
-        wrd.world_defs += '_LightClouds'
-        assets.add_embedded_data('cloudstexture.png')
+        if lnx.utils.get_active_scene().world.lnx_light_clouds_texture:
+            wrd.world_defs += '_LightClouds'
+            assets.add_embedded_data('cloudstexture.png')
 
     if rpdat.rp_renderer == 'Deferred':
         assets.add_khafile_def('lnx_deferred')