diff --git a/leenkx/blender/lnx/logicnode/world/LN_set_world.py b/leenkx/blender/lnx/logicnode/world/LN_set_world.py
index 0963735..d51f031 100644
--- a/leenkx/blender/lnx/logicnode/world/LN_set_world.py
+++ b/leenkx/blender/lnx/logicnode/world/LN_set_world.py
@@ -1,7 +1,10 @@
 from lnx.logicnode.lnx_nodes import *
 
 class SetWorldNode(LnxLogicTreeNode):
-    """Sets the World of the active scene."""
+    """Sets the World of the active scene.
+    World must be either associated to a scene or have fake user."""
+
+
     bl_idname = 'LNSetWorldNode'
     bl_label = 'Set World'
     lnx_version = 1