diff --git a/src/fiber_package/membership_tag.py b/src/fiber_package/membership_tag.py
index f42f2f9..04ba057 100644
--- a/src/fiber_package/membership_tag.py
+++ b/src/fiber_package/membership_tag.py
@@ -21,4 +21,4 @@ def validate_visibility_tag(v: str) -> str:
 MembershipTag = Annotated[str, AfterValidator(validate_visibility_tag)]
 
 def generate_tag(association_tag: str, membership: Membership) -> MembershipTag:
-    return association_tag + ":" + membership_tag
+    return association_tag + ":" + membership