diff --git a/src/authx/auth.py b/src/authx/auth.py
index bcf3f74..d1b4b58 100644
--- a/src/authx/auth.py
+++ b/src/authx/auth.py
@@ -680,7 +680,7 @@ def list_role_types_in_opa():
 def get_role_type_in_opa(role_type):
     result, status_code = get_service_store_secret("opa", key=f"site_roles")
     if status_code == 200:
-        if role_type in result['site_roles'].keys():
+        if role_type in list(result['site_roles'].keys()):
             return {role_type: result['site_roles'][role_type]}, 200
         return {"error": f"role type {role_type} does not exist"}, 404
     return result, status_code