diff --git a/decimal_magpack_test.go b/decimal_magpack_test.go
index 41d9dd2..59bc549 100644
--- a/decimal_magpack_test.go
+++ b/decimal_magpack_test.go
@@ -20,7 +20,6 @@ func TestMsgPack(t *testing.T) {
 		if err != nil{
 			t.Error(err)
 		}
-		s = amount.String()
 
 		// MarshalMsg
 		var b []byte