diff --git a/addons/io_scene_gltf2/io/exp/user_extensions.py b/addons/io_scene_gltf2/io/exp/user_extensions.py
index 07df16e25..195c3a688 100644
--- a/addons/io_scene_gltf2/io/exp/user_extensions.py
+++ b/addons/io_scene_gltf2/io/exp/user_extensions.py
@@ -23,6 +23,6 @@ def export_user_extensions(hook_name, export_settings, *args):
             try:
                 hook(*args, export_settings)
             except Exception as e:
-                export_settings['log'].error("Extension hook " + hook_name + " fails on " + extension)
+                export_settings['log'].error("Extension hook " + hook_name + " fails on " + extension.__module__)
                 export_settings['log'].error(str(e))