diff --git a/geomagio/imfv283/__init__.py b/geomagio/imfv283/__init__.py
index 8dd2121bbdf0a71d184e0be8779f52ffbeea4976..d5d08ec631065c4f52674bcdeb03a6bfe678512c 100644
--- a/geomagio/imfv283/__init__.py
+++ b/geomagio/imfv283/__init__.py
@@ -11,7 +11,7 @@ from IMFV283Parser import IMFV283Parser
 
 
 __all__ = [
-    'GOESIMFV283Factory'
+    'GOESIMFV283Factory',
     'IMFV283Factory',
     'StreamIMFV283Factory',
     'IMFV283Parser'