diff --git a/.gitignore b/.gitignore
index 755f09aa630d3b4a305d258385124b972559ff3f..d1606884fa9fc2c49467d620e7c6d2317ebfa5b1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 *.a
 *.d
 *.cmd
+tools/hc-gen/build