diff --git a/extensions/molecule/default/create.yml b/extensions/molecule/default/create.yml
index e4af6ef..0166744 100644
--- a/extensions/molecule/default/create.yml
+++ b/extensions/molecule/default/create.yml
@@ -98,7 +98,7 @@
 
     - name: systemd PID
       command: ps -q 1
-      register: ps-result
+      register: ps_result
       changed_when: false
 
     - name: Display PID 1 info