diff --git a/app/views/api/v1/widget/inbox_members/index.json.jbuilder b/app/views/api/v1/widget/inbox_members/index.json.jbuilder
index 126482110..8b46c8978 100644
--- a/app/views/api/v1/widget/inbox_members/index.json.jbuilder
+++ b/app/views/api/v1/widget/inbox_members/index.json.jbuilder
@@ -1,5 +1,7 @@
 json.payload do
   json.array! @inbox_members do |inbox_member|
+    next if inbox_member.user.blank?
+
     json.id inbox_member.user.id
     json.name inbox_member.user.available_name
     json.avatar_url inbox_member.user.avatar_url