diff --git a/cmd/ts/main.go b/cmd/ts/main.go
index 7c3d69f..a42a557 100644
--- a/cmd/ts/main.go
+++ b/cmd/ts/main.go
@@ -87,7 +87,7 @@ func getInd(i int) string {
 func getType(key string) string {
 	mps := map[string]string{
 		"int32":       "number",
-		"int64":       "string",
+		"int64":       "number",
 		"bytes":       "Uint8Array",
 		"Int32Value":  "number",
 		"StringValue": "string",