diff --git a/OpenTween/Twitter.cs b/OpenTween/Twitter.cs
index a41ff0bcd..0fcbc92d2 100644
--- a/OpenTween/Twitter.cs
+++ b/OpenTween/Twitter.cs
@@ -852,7 +852,7 @@ private PostClass[] CreatePostsFromJson(TwitterStatus[] statuses, bool firstLoad
         }
 
         private PostClass[] FilterNoRetweetUserPosts(PostClass[] posts)
-            => posts.Where(x => x.RetweetedByUserId == null || this.noRTId.Contains(x.RetweetedByUserId.Value)).ToArray();
+            => posts.Where(x => x.RetweetedByUserId == null || !this.noRTId.Contains(x.RetweetedByUserId.Value)).ToArray();
 
         public async Task GetListStatus(ListTimelineTabModel tab, bool more, bool firstLoad)
         {