diff --git a/backbone.js b/backbone.js
index 16bd9661..b55df514 100644
--- a/backbone.js
+++ b/backbone.js
@@ -519,8 +519,9 @@
 
     // Check if the model is currently in a valid state. It's only possible to
     // get into an *invalid* state if you're using silent changes.
-    isValid: function() {
-      return !this.validate || !this.validate(this.attributes);
+    isValid: function(options) {
+      options || (options = {});
+      return !this.validate || !this.validate(this.attributes, options);
     },
 
     // Run validation against the next complete set of model attributes,