diff --git a/src/addons/send2ue/core/io/__init__.py b/src/addons/send2ue/core/io/__init__.py
index adf1d7de..b74b7cba 100644
--- a/src/addons/send2ue/core/io/__init__.py
+++ b/src/addons/send2ue/core/io/__init__.py
@@ -1,6 +1,6 @@
 from . import fbx_b3, fbx_b4
 
 __all__ = [
-    'fbx_b3'
+    'fbx_b3',
     'fbx_b4'
 ]