diff --git a/python/podio_schema_evolution.py b/python/podio_schema_evolution.py
index 8a6b44ce4..12d500c66 100755
--- a/python/podio_schema_evolution.py
+++ b/python/podio_schema_evolution.py
@@ -105,8 +105,8 @@ def __init__(self, name, member_name, old_member, new_member):
         self.new_member = new_member
         self.klassname = name
         super().__init__(
-            f"'{self.name}.{self.member_name}' changed type from "+\
-                    f"{self.old_member.full_type} to {self.new_member.full_type}"
+            f"'{self.name}.{self.member_name}' changed type from "
+            + f"{self.old_member.full_type} to {self.new_member.full_type}"
         )
 
 
@@ -475,4 +475,4 @@ def read_evolution_file(self) -> None:
     comparator.read()
     comparator.compare()
     comparator.print_comparison()
-    #print(comparator.get_changed_schemata(schema_filter=root_filter))
+    # print(comparator.get_changed_schemata(schema_filter=root_filter))