diff --git a/src/budy/order.py b/src/budy/order.py
index b2b027f..3732537 100644
--- a/src/budy/order.py
+++ b/src/budy/order.py
@@ -101,3 +101,8 @@ def end_pay_order(self, key, payload):
         url = self.base_url + "orders/%s/end_pay" % key
         contents = self.put(url, data_j = payload)
         return contents
+
+    def cancel_order(self, key, payload):
+        url = self.base_url + "orders/%s/cancel" % key
+        contents = self.put(url, data_j = payload)
+        return contents