diff --git a/modules/ui/fields/localized.js b/modules/ui/fields/localized.js
index 9126aad8f..89639f4d1 100644
--- a/modules/ui/fields/localized.js
+++ b/modules/ui/fields/localized.js
@@ -125,7 +125,7 @@ export function uiFieldLocalized(field, context) {
         var existingLangs = new Set(existingLangsOrdered.filter(Boolean));
 
         for (var k in tags) {
-            var m = k.match(/^(.*):([a-zA-Z_-]+)$/);
+            var m = k.match(/^(.*):(.+)$/);
             if (m && m[1] === field.key && m[2]) {
                 var item = { lang: m[2], value: tags[k] };
                 if (existingLangs.has(item.lang)) {