diff --git a/lib/cgo/transaction.hours.go b/lib/cgo/transaction.hours.go
index 88209e96b..a47c9e99a 100644
--- a/lib/cgo/transaction.hours.go
+++ b/lib/cgo/transaction.hours.go
@@ -1,9 +1,10 @@
 package main
 
 import (
+	"reflect"
 	"unsafe"
 
-	"github.com/SkycoinProject/skycoin/src/transaction"
+	transaction "github.com/SkycoinProject/skycoin/src/transaction"
 )
 
 /*
@@ -12,30 +13,30 @@ import (
   #include <stdlib.h>
 
   #include "skytypes.h"
-	#include "skyfee.h"
+  #include "skyfee.h"
 */
 import "C"
 
-//export SKY_transaction_DistributeCoinHoursProportional
-func SKY_transaction_DistributeCoinHoursProportional(_coins []uint64, _hours uint64, _arg2 *[]uint64) (____error_code uint32) {
-	coins := *(*[]uint64)(unsafe.Pointer(&_coins))
-	hours := _hours
-	__arg2, ____return_err := transaction.DistributeCoinHoursProportional(coins, hours)
-	____error_code = libErrorCode(____return_err)
-	if ____return_err == nil {
-		*_arg2 = __arg2
-	}
-	return
-}
-
 //export SKY_transaction_DistributeSpendHours
-func SKY_transaction_DistributeSpendHours(_inputHours, _nAddrs uint64, _haveChange bool, _arg2 *uint64, _arg3 *[]uint64, _arg4 *uint64) (____error_code uint32) {
+func SKY_transaction_DistributeSpendHours(_inputHours, _nAddrs uint64, _haveChange bool, _arg2 *uint64, _arg3 *C.GoSlice_, _arg4 *uint64) (____error_code uint32) {
 	inputHours := _inputHours
 	nAddrs := _nAddrs
 	haveChange := _haveChange
 	__arg2, __arg3, __arg4 := transaction.DistributeSpendHours(inputHours, nAddrs, haveChange)
 	*_arg2 = __arg2
-	*_arg3 = __arg3
+	copyToGoSlice(reflect.ValueOf(__arg3), _arg3)
 	*_arg4 = __arg4
 	return
 }
+
+//export SKY_transaction_DistributeCoinHoursProportional
+func SKY_transaction_DistributeCoinHoursProportional(_coins []uint64, _hours uint64, _arg2 *C.GoSlice_) (____error_code uint32) {
+	coins := *(*[]uint64)(unsafe.Pointer(&_coins))
+	hours := _hours
+	__arg2, ____return_err := transaction.DistributeCoinHoursProportional(coins, hours)
+	____error_code = libErrorCode(____return_err)
+	if ____return_err == nil {
+		copyToGoSlice(reflect.ValueOf(__arg2), _arg2)
+	}
+	return
+}