diff --git a/src/graphql/schema.js b/src/graphql/schema.js
index 7fc2e6062cc9612489d787105902d2d42875318b..887570e36fafac509a2e2454f15aa01f5f05ef87 100644
--- a/src/graphql/schema.js
+++ b/src/graphql/schema.js
@@ -101,7 +101,9 @@ const getUsersWithAdminRights = (uid) => {
  */
 const getAvailableGroupUID = (initialUID) => {
     let rasUID = initialUID;
-}
+    rasUID.replace(' ', '_');
+    rasUID.replace(/\W/g, '');
+};
 
 const createGroupIfLegal = (user, args) => {
     if(typeof args.parentuid != String)