diff --git a/tests/data/bbsim-kind-tt.yaml b/tests/data/bbsim-kind-tt.yaml
old mode 100644
new mode 100755
index 56706cf..5e4adaf
--- a/tests/data/bbsim-kind-tt.yaml
+++ b/tests/data/bbsim-kind-tt.yaml
@@ -54,7 +54,7 @@
       olt: 'BBSIM_OLT_10'
       c_tag: '55'
       s_tag: '550'
-      service_type: 'MC'
+      service_type: 'mcast'
 
   dst:
     - ip: null