diff --git a/netbox/ipam/api/views.py b/netbox/ipam/api/views.py
index 70065fd96..076e1f86f 100644
--- a/netbox/ipam/api/views.py
+++ b/netbox/ipam/api/views.py
@@ -75,7 +75,7 @@ class PrefixViewSet(CustomFieldModelViewSet):
     filterset_class = filters.PrefixFilterSet
 
     @swagger_auto_schema(method='get', responses={200: serializers.AvailablePrefixSerializer(many=True)})
-    @swagger_auto_schema(method='post', responses={201: serializers.AvailablePrefixSerializer(many=False)})
+    @swagger_auto_schema(method='post', responses={201: serializers.AvailablePrefixSerializer(many=True)})
     @action(detail=True, url_path='available-prefixes', methods=['get', 'post'])
     @advisory_lock(ADVISORY_LOCK_KEYS['available-prefixes'])
     def available_prefixes(self, request, pk=None):
@@ -155,7 +155,7 @@ class PrefixViewSet(CustomFieldModelViewSet):
             return Response(serializer.data)
 
     @swagger_auto_schema(method='get', responses={200: serializers.AvailableIPSerializer(many=True)})
-    @swagger_auto_schema(method='post', responses={201: serializers.AvailableIPSerializer(many=False)},
+    @swagger_auto_schema(method='post', responses={201: serializers.AvailableIPSerializer(many=True)},
                          request_body=serializers.AvailableIPSerializer(many=False))
     @action(detail=True, url_path='available-ips', methods=['get', 'post'])
     @advisory_lock(ADVISORY_LOCK_KEYS['available-ips'])