diff --git a/src/build/i18n.ts b/src/build/i18n.ts
index a6cc6c38ff..6c0f633ad9 100644
--- a/src/build/i18n.ts
+++ b/src/build/i18n.ts
@@ -7,7 +7,7 @@ import locale from '../../locales';
 export default class Replacer {
 	private lang: string;
 
-	public pattern = /%i18n:([a-z_\-@\.\!]+?)%/g;
+	public pattern = /%i18n:([a-z0-9_\-@\.\!]+?)%/g;
 
 	constructor(lang: string) {
 		this.lang = lang;