diff --git a/lib/client.js b/lib/client.js
index 1e069d6..ea40a35 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -182,7 +182,7 @@ extend(Raven.prototype, {
 
     var shouldSend = true;
     if (!this._enabled) shouldSend = false;
-    if (this.shouldSendCallback && !this.shouldSendCallback()) shouldSend = false;
+    if (this.shouldSendCallback && !this.shouldSendCallback(kwargs)) shouldSend = false;
 
     if (shouldSend) {
       this.send(kwargs, cb);