diff --git a/utils/credits_git_gen.py b/utils/credits_git_gen.py
index 4d95c787354f0c30ddda60b5b15d73daf87cac4c..96dd579eb8094fc718a9443164e74bef30ca6034 100644
--- a/utils/credits_git_gen.py
+++ b/utils/credits_git_gen.py
@@ -40,6 +40,7 @@ class GitCommit:
         "_files",
         "_files_status",
         )
+
     def __init__(self, sha1, git_dir):
         self.sha1 = sha1
         self._git_dir = git_dir
@@ -51,7 +52,6 @@ class GitCommit:
         self._files_status = \
         None
 
-
     def _log_format(self, format, args=()):
         # sha1 = self.sha1.decode('ascii')
         cmd = (
@@ -171,6 +171,7 @@ class CreditUser:
         "year_min",
         "year_max",
         )
+
     def __init__(self):
         self.commit_total = 0
 
@@ -179,6 +180,7 @@ class Credits:
     __slots__ = (
         "users",
         )
+
     def __init__(self):
         self.users = {}