diff --git a/release/scripts/startup/bl_operators/anim.py b/release/scripts/startup/bl_operators/anim.py
index f3575f26890..05817216a54 100644
--- a/release/scripts/startup/bl_operators/anim.py
+++ b/release/scripts/startup/bl_operators/anim.py
@@ -108,10 +108,40 @@ class ANIM_OT_keying_set_export(Operator):
             - id.bl_rna.name gives a name suitable for UI,
               with a capitalised first letter, but we need
               the plural form that's all lower case
+            - special handling is needed for "nested" ID-blocks
+              (e.g. nodetree in Material)
             """
-
-            idtype_list = ksp.id.bl_rna.name.lower() + "s"
-            id_bpy_path = "bpy.data.%s[\"%s\"]" % (idtype_list, ksp.id.name)
+            if ksp.id.bl_rna.identifier.startswith("ShaderNodeTree"):
+                # Find material or lamp using this node tree...
+                id_bpy_path = "bpy.data.nodes[\"%s\"]"
+                found = False
+                
+                for mat in bpy.data.materials:
+                    if mat.node_tree == ksp.id:
+                        id_bpy_path = "bpy.data.materials[\"%s\"].node_tree" % (mat.name)
+                        found = True
+                        break;
+                        
+                if not found:
+                    for lamp in bpy.data.lamps:
+                        if lamp.node_tree == ksp.id:
+                            id_bpy_path = "bpy.data.lamps[\"%s\"].node_tree" % (lamp.name)
+                            found = True
+                            break;
+                    
+                if not found:
+                    self.report({'WARN'}, "Could not find material or lamp using Shader Node Tree - %s" % (ksp.id))                    
+            elif ksp.id.bl_rna.identifier.startswith("CompositorNodeTree"):
+                # Find compositor nodetree using this node tree...
+                for scene in bpy.data.scenes:
+                    if scene.node_tree == ksp.id:
+                        id_bpy_path = "bpy.data.scenes[\"%s\"].node_tree" % (scene.name)
+                        break;
+                else:
+                    self.report({'WARN'}, "Could not find scene using Compositor Node Tree - %s" % (ksp.id)) 
+            else:
+                idtype_list = ksp.id.bl_rna.name.lower() + "s"
+                id_bpy_path = "bpy.data.%s[\"%s\"]" % (idtype_list, ksp.id.name)
 
             # shorthand ID for the ID-block (as used in the script)
             short_id = "id_%d" % len(id_to_paths_cache)