diff --git a/core/CliMulti/RequestParser.php b/core/CliMulti/RequestParser.php
index a6d748745a4..c9f11b6f4b2 100644
--- a/core/CliMulti/RequestParser.php
+++ b/core/CliMulti/RequestParser.php
@@ -108,6 +108,6 @@ protected function invokePs()
             return ''; // skip check in tests as it might result in random failures
         }
 
-        return `ps aux`;
+        return `ps wwaux`;
     }
 }