diff --git a/api/nodes/serializers.py b/api/nodes/serializers.py
index aaff14ac1b95..4f4dddc4bc5a 100644
--- a/api/nodes/serializers.py
+++ b/api/nodes/serializers.py
@@ -1618,8 +1618,9 @@ def create(self, validated_data):
         if registration_responses:
             self.update_registration_responses(draft, registration_responses)
 
-        if affiliate_user_institutions and draft.branched_from_type == DraftNode:
-            draft.affiliated_institutions.set(draft.creator.affiliated_institutions.all())
+        if affiliate_user_institutions and isinstance(draft.branched_from, DraftNode):
+            for institution in draft.creator.get_institution_affiliations():
+                draft.affiliated_institutions.add(*draft.creator.affiliated_institutions.all())
 
         return draft