diff --git a/pcigale/__init__.py b/pcigale/__init__.py
index 75a97e14571ee4757d5d871ec63be7e0dfccc7e8..74c725eda271c17e9ee624948bbd9b5841819f33 100644
--- a/pcigale/__init__.py
+++ b/pcigale/__init__.py
@@ -57,7 +57,7 @@ def main():
     if sys.version_info[:2] < (3, 5):
         raise Exception("Python {}.{} is unsupported. Please upgrade to "
                         "Python 3.5 or later.".format(*sys.version_info[:2]))
-    if sys.version_info[:2] < (3,6):
+    if sys.version_info[:2] < (3, 6):
         print("Python {}.{} detected. For better performance we recommend "
               "Python 3.6 or later.".format(*sys.version_info[:2]))