diff --git a/Objective-J/Debug.js b/Objective-J/Debug.js
index b928548f5..1e154b109 100644
--- a/Objective-J/Debug.js
+++ b/Objective-J/Debug.js
@@ -80,7 +80,7 @@ GLOBAL(objj_backtrace_print) = function(/*Callable*/ aStream)
     {
         var frame = objj_backtrace[index];
 
-        stream(objj_debug_message_format(frame.receiver, frame.selector));
+        aStream(objj_debug_message_format(frame.receiver, frame.selector));
     }
 }