diff --git a/bin/stf b/bin/stf
index 2fb2912e..bc1b2bd2 100755
--- a/bin/stf
+++ b/bin/stf
@@ -1,2 +1,2 @@
-#!/usr/bin/env node --harmony
+#!/usr/bin/env BLUEBIRD_DEBUG=1 node --harmony
 require('../lib/cli')