diff --git a/ui/src/components/post-listing.tsx b/ui/src/components/post-listing.tsx
index 36a1e2828..c1480f79f 100644
--- a/ui/src/components/post-listing.tsx
+++ b/ui/src/components/post-listing.tsx
@@ -163,7 +163,10 @@ export class PostListing extends Component<PostListingProps, PostListingState> {
     if (isImage(post.url)) {
       if (post.url.includes('pictshare')) {
         return pictshareImage(post.url, thumbnail);
-      } else if (post.thumbnail_url) {
+      } else if (
+        post.thumbnail_url &&
+        post.thumbnail_url.includes('pictshare')
+      ) {
         return pictshareImage(post.thumbnail_url, thumbnail);
       } else {
         return post.url;