diff --git a/include/transaction.choose.go.h b/include/transaction.choose.go.h
index 3024ea577..ebf8b3d7e 100644
--- a/include/transaction.choose.go.h
+++ b/include/transaction.choose.go.h
@@ -1,15 +1,10 @@
-/**
- * Skycoin transaction.
- *
- * Instances of this struct are included in blocks.
- */
-typedef struct {
-    cipher__SHA256 Hash;     ///< Hash of underlying UxOut.
-    GoUint64_ BkSeq;         ///< Block height corresponding to the
-                             ///< moment balance calculation is performed at.
-    cipher__Address Address; ///< Account holder address.
-    GoUint64_ Coins;         ///< Coins amount (e.g. in SKY).
-    GoUint64_ Hours;         ///< Balance of Coin Hours generated by underlying UxOut, depending on UxOut's head time.
+typedef struct{
+    cipher__SHA256 Hash;
+    GoUint64_ BkSeq;
+    GoUint64_ Time;
+    cipher__Address Address;
+    GoUint64_ Coins;
     GoUint64_ InitialHours;
+    GoUint64_ Hours;
     cipher__SHA256 SrcTransaction;
-} transaction__UxBalance;
+} transaction__UxBalance;
\ No newline at end of file
diff --git a/lib/cgo/transaction.choose.go b/lib/cgo/transaction.choose.go
index 45b8e6598..a679c98b2 100644
--- a/lib/cgo/transaction.choose.go
+++ b/lib/cgo/transaction.choose.go
@@ -5,7 +5,7 @@ import (
 	"unsafe"
 
 	coin "github.com/SkycoinProject/skycoin/src/coin"
-	"github.com/SkycoinProject/skycoin/src/transaction"
+	transaction "github.com/SkycoinProject/skycoin/src/transaction"
 )
 
 /*
@@ -14,16 +14,15 @@ import (
   #include <stdlib.h>
 
   #include "skytypes.h"
-	#include "skyfee.h"
+  #include "skyfee.h"
 */
 import "C"
 
-//export SKY_transaction_ChooseSpendsMaximizeUxOuts
-func SKY_transaction_ChooseSpendsMaximizeUxOuts(_uxa []C.transaction__UxBalance, _coins, _hours uint64, _arg2 *C.GoSlice_) (____error_code uint32) {
-	txa := *(*[]transaction.UxBalance)(unsafe.Pointer(&_uxa))
-	coins := _coins
-	hours := _hours
-	__arg2, ____return_err := transaction.ChooseSpendsMaximizeUxOuts(txa, coins, hours)
+//export SKY_transaction_NewUxBalances
+func SKY_transaction_NewUxBalances(_uxa *C.coin__UxArray, _headTime uint64, _arg2 *C.GoSlice_) (____error_code uint32) {
+	uxa := *(*coin.UxArray)(unsafe.Pointer(_uxa))
+	headTime := _headTime
+	__arg2, ____return_err := transaction.NewUxBalances(uxa, headTime)
 	____error_code = libErrorCode(____return_err)
 	if ____return_err == nil {
 		copyToGoSlice(reflect.ValueOf(__arg2), _arg2)
@@ -31,6 +30,18 @@ func SKY_transaction_ChooseSpendsMaximizeUxOuts(_uxa []C.transaction__UxBalance,
 	return
 }
 
+//export SKY_transaction_NewUxBalance
+func SKY_transaction_NewUxBalance(_headTime uint64, _ux *C.coin__UxOut, _arg2 *C.transaction__UxBalance) (____error_code uint32) {
+	headTime := _headTime
+	ux := *(*coin.UxOut)(unsafe.Pointer(_ux))
+	__arg2, ____return_err := transaction.NewUxBalance(headTime, ux)
+	____error_code = libErrorCode(____return_err)
+	if ____return_err == nil {
+		*_arg2 = *(*C.transaction__UxBalance)(unsafe.Pointer(&__arg2))
+	}
+	return
+}
+
 //export SKY_transaction_ChooseSpendsMinimizeUxOuts
 func SKY_transaction_ChooseSpendsMinimizeUxOuts(_uxa []C.transaction__UxBalance, _coins, _hours uint64, _arg2 *C.GoSlice_) (____error_code uint32) {
 	uxa := *(*[]transaction.UxBalance)(unsafe.Pointer(&_uxa))
@@ -44,26 +55,29 @@ func SKY_transaction_ChooseSpendsMinimizeUxOuts(_uxa []C.transaction__UxBalance,
 	return
 }
 
-//export SKY_transaction_NewUxBalance
-func SKY_transaction_NewUxBalance(_headTime uint64, _ux *C.coin__UxOut, _arg2 *C.transaction__UxBalance) (____error_code uint32) {
-	headTime := _headTime
-	ux := *(*coin.UxOut)(unsafe.Pointer(_ux))
-	__arg2, ____return_err := transaction.NewUxBalance(headTime, ux)
+//export SKY_transaction_ChooseSpendsMaximizeUxOuts
+func SKY_transaction_ChooseSpendsMaximizeUxOuts(_uxa []C.transaction__UxBalance, _coins, _hours uint64, _arg2 *C.GoSlice_) (____error_code uint32) {
+	uxa := *(*[]transaction.UxBalance)(unsafe.Pointer(&_uxa))
+	coins := _coins
+	hours := _hours
+	__arg2, ____return_err := transaction.ChooseSpendsMaximizeUxOuts(uxa, coins, hours)
 	____error_code = libErrorCode(____return_err)
 	if ____return_err == nil {
-		*_arg2 = *(*C.transaction__UxBalance)(unsafe.Pointer(&__arg2))
+		copyToGoSlice(reflect.ValueOf(__arg2), _arg2)
 	}
 	return
 }
 
-//export SKY_transaction_NewUxBalances
-func SKY_transaction_NewUxBalances(_headTime uint64, _uxa *C.coin__UxArray, _arg2 *C.GoSlice_) (____error_code uint32) {
-	headTime := _headTime
-	uxa := *(*coin.UxArray)(unsafe.Pointer(_uxa))
-	__arg2, ____return_err := transaction.NewUxBalances(uxa, headTime)
+//export SKY_transaction_ChooseSpends
+func SKY_transaction_ChooseSpends(_uxa []C.transaction__UxBalance, _coins, _hours uint64, _sortStrategy, _arg3 *C.GoSlice_) (____error_code uint32) {
+	uxa := *(*[]transaction.UxBalance)(unsafe.Pointer(&_uxa))
+	coins := _coins
+	hours := _hours
+	sortStrategy := copyToFunc(_sortStrategy)
+	__arg3, ____return_err := transaction.ChooseSpends(uxa, coins, hours, sortStrategy)
 	____error_code = libErrorCode(____return_err)
 	if ____return_err == nil {
-		copyToGoSlice(reflect.ValueOf(__arg2), _arg2)
+		copyToGoSlice(reflect.ValueOf(__arg3), _arg3)
 	}
 	return
 }