diff --git a/capycli/bom/findsources.py b/capycli/bom/findsources.py
index 920a760..10ec65c 100644
--- a/capycli/bom/findsources.py
+++ b/capycli/bom/findsources.py
@@ -289,7 +289,7 @@ def get_github_source_url(self, github_url: str, version: str) -> str:
         tag_info_checked = self.check_for_github_error(tag_info)
         return self.get_matching_tag(tag_info_checked, version, github_url)
 
-    def check_for_github_error(self, tag_info: List[Dict[str, Any]] | Dict[str, Any]) -> List[Dict[str, Any]]:
+    def check_for_github_error(self, tag_info: get_github_info_type) -> List[Dict[str, Any]]:
         if isinstance(tag_info, list):
             # assume valid answer
             return tag_info