diff --git a/src/BitPaySDKLight/Model/Bill/BillStatus.php b/src/BitPaySDKLight/Model/Bill/BillStatus.php
index 500c816..8cfcf28 100644
--- a/src/BitPaySDKLight/Model/Bill/BillStatus.php
+++ b/src/BitPaySDKLight/Model/Bill/BillStatus.php
@@ -7,8 +7,8 @@
 interface BillStatus
 {
     const Draft    = "draft";
-    const Sent     = "dent";
+    const Sent     = "sent";
     const New      = "new";
     const Paid     = "paid";
     const Complete = "complete";
-}
\ No newline at end of file
+}