diff --git a/lodash.src.js b/lodash.src.js
index 109a4e497..fa0a20416 100644
--- a/lodash.src.js
+++ b/lodash.src.js
@@ -7803,9 +7803,9 @@
         var leading = true;
         trailing = false;
       } else if (isObject(options)) {
-        leading = options.leading;
+        leading = !!options.leading;
         maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
-        trailing = 'trailing' in options ? options.trailing : trailing;
+        trailing = 'trailing' in options ? !!options.trailing : trailing;
       }
 
       function cancel() {