diff --git a/little/little.go b/little/little.go
index fc5a255..11a742b 100644
--- a/little/little.go
+++ b/little/little.go
@@ -478,7 +478,7 @@ func WriteString16(w io.Writer, str string) error {
 }
 
 // для записи timestamp-ов
-func WriteInt64AsUint32(w io.Writer, num int) error {
+func WriteInt64AsUint32(w io.Writer, num int64) error {
 	if num < 0 || num > math.MaxUint32 {
 		return ErrRange
 	}