diff --git a/cmd/dev/app/rule_type/init.go b/cmd/dev/app/rule_type/init.go
index c7c078f87e..90e1048a63 100644
--- a/cmd/dev/app/rule_type/init.go
+++ b/cmd/dev/app/rule_type/init.go
@@ -187,7 +187,7 @@ func createRuleTypeTestDataDir(dirName string) error {
 }
 
 func createFileWithContent(fileName, content string) error {
-	return os.WriteFile(fileName, []byte(content), 0644)
+	return os.WriteFile(fileName, []byte(content), 0600)
 }
 
 func renderwithRuleTypeName(templ, name string) string {