diff --git a/register.go b/register.go
index fbeff2d..bb32bac 100644
--- a/register.go
+++ b/register.go
@@ -1,6 +1,8 @@
 package main
 
 import (
+	"strconv"
+
 	nex "github.com/PretendoNetwork/nex-go"
 	nexproto "github.com/PretendoNetwork/nex-protocols-go"
 )
diff --git a/register_ex.go b/register_ex.go
index 2e2b37c..ea07af1 100644
--- a/register_ex.go
+++ b/register_ex.go
@@ -1,6 +1,8 @@
 package main
 
 import (
+	"strconv"
+
 	nex "github.com/PretendoNetwork/nex-go"
 	nexproto "github.com/PretendoNetwork/nex-protocols-go"
 )