diff --git a/fdroidserver/common.py b/fdroidserver/common.py
index c61e9a5a..992a23b2 100644
--- a/fdroidserver/common.py
+++ b/fdroidserver/common.py
@@ -857,7 +857,7 @@ def parse_androidmanifests(paths):
     return (max_version, max_vercode, max_package)
 
 class BuildException(Exception):
-    def __init__(self, value, detail = None):
+    def __init__(self, value, detail=None):
         self.value = value
         self.detail = detail