diff --git a/wgmaster/migrate.py b/wgmaster/migrate.py
index 0e50d4e..ec8cd2f 100755
--- a/wgmaster/migrate.py
+++ b/wgmaster/migrate.py
@@ -345,10 +345,10 @@ def migrate_members(in_dir: str, out_dir: str) -> None:
                     family_name = family_name.title()
                     billing_name = f'{family_name} {parts[0].title()} und {parts[-1].title()}'
                     given_name = parts[0].title()
-                elif given_name.endswith(' GesBR'):
+                elif given_name.lower().endswith(' gesbr'):
                     family_name = family_name.title()
                     given_name = given_name.split(' ')[0].title()
-                    billing_name = f'{family_name} {given_name} GesBR'
+                    billing_name = f'{family_name} {given_name} GesbR'
                 elif given_name.endswith(' KeG.'):
                     family_name = family_name.title()
                     given_name = given_name.split(' ')[0].title()