diff --git a/.gitignore b/.gitignore
index f5c8e8c7..11f5c4ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ version.h
 tools/httpd_sim
 tools/injector
 tools/fileadder
+build/
 
 # host-test stand-ins for the two generated headers
 !test/stub/html_data.h