diff --git a/16/main_test.go b/16/main_test.go
index cf060cb..c9de669 100644
--- a/16/main_test.go
+++ b/16/main_test.go
@@ -5,7 +5,7 @@ import (
 )
 
 func TestVersionParse(t *testing.T) {
-	tests := map[int64][]uint8{
+	tests := map[int][]uint8{
 		0: {0, 0, 0},
 		1: {0, 0, 1},
 		2: {0, 1, 0},