diff --git a/src/utils/StringUtils.ts b/src/utils/StringUtils.ts
index 91aca4e..338c2db 100644
--- a/src/utils/StringUtils.ts
+++ b/src/utils/StringUtils.ts
@@ -83,5 +83,5 @@ export function check_youtube_id(s: string) : boolean {
  * @param s The emoji code to check
  */
 export function checkEmojiCode(s: string) : boolean {
-	return s.match(/^:[a-zA-Z0-9]*:$/) != null
+	return s.match(/^:[a-zA-Z0-9]+:$/) != null
 }
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