diff --git a/backend/src/graphql/resolver/UserResolver.ts b/backend/src/graphql/resolver/UserResolver.ts
index bbd33f3ab..cc712e308 100644
--- a/backend/src/graphql/resolver/UserResolver.ts
+++ b/backend/src/graphql/resolver/UserResolver.ts
@@ -525,8 +525,7 @@ export class UserResolver {
       user.lastName = lastName
     }
 
-    if (alias) {
-      await validateAlias(alias)
+    if (alias && await validateAlias(alias)) {
       user.alias = alias
     }