diff --git a/src/services/utils.js b/src/services/utils.js
index 1b6b303ab..3a717c869 100644
--- a/src/services/utils.js
+++ b/src/services/utils.js
@@ -281,7 +281,7 @@ function removeDiacritic(str) {
     if (!str) {
         return "";
     }
-
+    str = str.toString();
     return str.normalize("NFD").replace(/\p{Diacritic}/gu, "");
 }