diff --git a/files/assets/js/emoji_modal.js b/files/assets/js/emoji_modal.js
index da58bb2ab..df407875a 100644
--- a/files/assets/js/emoji_modal.js
+++ b/files/assets/js/emoji_modal.js
@@ -179,7 +179,7 @@ function fetchEmojis() {
 					emojisSearchDictionary.updateTag(`@${emoji.author_username.toLowerCase()}`, emoji.name);
 					if (emoji.author_original_username != emoji.author_username)
 						emojisSearchDictionary.updateTag(`@${emoji.author_original_username.toLowerCase()}`, emoji.name);
-					if (emoji.author_prelock_username !== null)
+					if (emoji.author_prelock_username !== undefined)
 						emojisSearchDictionary.updateTag(`@${emoji.author_prelock_username.toLowerCase()}`, emoji.name);
 				}