diff --git a/client/js/models/post.js b/client/js/models/post.js
index 56a9450a..8002a0c9 100644
--- a/client/js/models/post.js
+++ b/client/js/models/post.js
@@ -79,7 +79,9 @@ class Post extends events.EventTarget {
     }
 
     isTaggedWith(tagName) {
-        return this._tags.map(s => s.toLowerCase()).includes(tagName);
+        return this._tags
+            .map(s => s.toLowerCase())
+            .includes(tagName.toLowerCase());
     }
 
     addTag(tagName, addImplications) {