diff --git a/atomics/T1191/T1191.yaml b/atomics/T1191/T1191.yaml
index df05729d..7ee70bf5 100644
--- a/atomics/T1191/T1191.yaml
+++ b/atomics/T1191/T1191.yaml
@@ -36,4 +36,4 @@ atomic_tests:
   executor:
     name: command_prompt
     command: |
-      cmstp.exe #{inf_file_uac} /au
+      cmstp.exe /s #{inf_file_uac} /au