diff --git a/mach b/mach
index e9a4fb1d4225..50c4b108d855 100755
--- a/mach
+++ b/mach
@@ -29,7 +29,6 @@ py2commands="
     hazards
     jsapi-tests
     jsshell-bench
-    marionette-test
     mochitest
     mozharness
     pastebin