diff --git a/src/models/actions/CreateUser.ts b/src/models/actions/CreateUser.ts
index 48858f4..d51db4e 100644
--- a/src/models/actions/CreateUser.ts
+++ b/src/models/actions/CreateUser.ts
@@ -67,7 +67,7 @@ export class CreateUser {
      * Optional.
      */
     @IsOptional()
-    groupId?: number[] | number
+    group?: number[] | number
 
     //TODO: ProfilePics
 
@@ -81,11 +81,11 @@ export class CreateUser {
             throw new UsernameOrEmailNeededError();
         }
 
-        if (this.groupId) {
-            if (!Array.isArray(this.groupId)) {
-                this.groupId = [this.groupId]
+        if (this.group) {
+            if (!Array.isArray(this.group)) {
+                this.group = [this.group]
             }
-            const groupIDs: number[] = this.groupId
+            const groupIDs: number[] = this.group
             let errors = 0
             const validateusergroups = async () => {
                 let foundgroups = []