diff --git a/packages/basic.gblib/services/DialogKeywords.ts b/packages/basic.gblib/services/DialogKeywords.ts
index b929512d..7299a2af 100644
--- a/packages/basic.gblib/services/DialogKeywords.ts
+++ b/packages/basic.gblib/services/DialogKeywords.ts
@@ -532,10 +532,14 @@ export class DialogKeywords {
    * @example ALLOW ROLE "DevOps"
    *
    */
-  public async allowRole({ pid, value: role }) {
+  public async allowRole({ pid, role }) {
     const { min, user, proc } = await DialogKeywords.getProcessInfo(pid);
     const sys  = new SystemKeywords();
 
+    if (!role){
+      throw new Error(`Invalid access. NULL role specified.`);
+    }
+
     // Updates current roles allowed from now on this dialog/process.
 
     proc.roles = role;