diff --git a/bluebird/bluebird-tests.ts b/bluebird/bluebird-tests.ts
index b1829c52e..00f6e951f 100644
--- a/bluebird/bluebird-tests.ts
+++ b/bluebird/bluebird-tests.ts
@@ -754,8 +754,8 @@ Promise.longStackTraces();
 
 //TODO enable delay
 
-fooProm = Promise.delay(fooThen, num);
-fooProm = Promise.delay(foo, num);
+fooProm = Promise.delay(num, fooThen);
+fooProm = Promise.delay(num, foo);
 voidProm = Promise.delay(num);
 
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