diff --git a/serialport/.gitignore b/serialport/.gitignore
index 990963e..968c49e 100644
--- a/serialport/.gitignore
+++ b/serialport/.gitignore
@@ -1 +1,3 @@
-L2J1aWxkCi5leHRlcm5hbE5hdGl2ZUJ1aWxkCi5jeHgK
\ No newline at end of file
+/build
+.externalNativeBuild
+.cxx