diff --git a/src/definitions/behaviors/api.js b/src/definitions/behaviors/api.js
index 4d1916622..21eec60a6 100644
--- a/src/definitions/behaviors/api.js
+++ b/src/definitions/behaviors/api.js
@@ -549,7 +549,7 @@ $.api = $.fn.api = function(parameters) {
             var
               formData
             ;
-            if($(this).serializeObject() !== undefined) {
+            if($(this).serializeObject !== undefined) {
               formData = $form.serializeObject();
             }
             else {