cluster/lib/cluster/runner.rb in sct-1.7.0 vs cluster/lib/cluster/runner.rb in sct-1.8.0

@@ -1,8 +1,8 @@
 module Cluster
   class Runner
 
-    @@dc = system("which docker-compose") ? 'docker-compose' : 'docker compose'
+    @@dc = system("docker compose version", out: "/dev/null", err: "/dev/null") ? "docker compose" : "docker-compose"
 
     def run command, options = {}
       begin
         if !system command, options
           raise command.red