diff --git a/leenkx/blender/lnx/write_probes.py b/leenkx/blender/lnx/write_probes.py
index abe945b..a57636b 100644
--- a/leenkx/blender/lnx/write_probes.py
+++ b/leenkx/blender/lnx/write_probes.py
@@ -118,7 +118,8 @@ def render_envmap(target_dir: str, world: bpy.types.World) -> str:
     scene = bpy.data.scenes['_lnx_envmap_render']
     scene.world = world
 
-    image_name = f'env_{lnx.utils.safesrc(world.name)}.{ENVMAP_EXT}'
+    world_name = lnx.utils.asset_name(world) if world.library else world.name
+    image_name = f'env_{lnx.utils.safesrc(world_name)}.{ENVMAP_EXT}'
     render_path = os.path.join(target_dir, image_name)
     scene.render.filepath = render_path