diff --git a/mpcdf_common.py b/mpcdf_common.py
index 936c5a92a33aacd62858e136675d20c9e7668fc6..b61f54ebb454439e82a677ce42257907a6118833 100644
--- a/mpcdf_common.py
+++ b/mpcdf_common.py
@@ -59,7 +59,7 @@ def check_for_update():
         setattr(sys.modules["mpcdf_common"], "checked_for_updates", 1)
 
     if (sys.version_info > (3, 0)):
-        set_encoding = {"encoding" : "utf-8"}
+        set_encoding = {"encoding": "utf-8"}
     else:
         set_encoding = {}