diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index ce24e66e..f6db5ec0 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -1276,7 +1276,7 @@ class HandoverSerializer(CustomModelSerializer):
                     item["count"] = len(handoverbw)
                     t_count += len(handoverbw)
                     wprIds = [i["wpr"].id for i in handoverbw]
-                    wm_ids = Wpr.objects.filter(id__in=wprIds).values_list("wm_id", flat=True)
+                    wm_ids = list(Wpr.objects.filter(id__in=wprIds).values_list("wm_id", flat=True).distinct())
                     if len(wm_ids) == 1 and wm_ids[0] == wm.id:
                         pass
                     else: