diff --git a/.gitignore b/.gitignore
index 6f2674aa..320f0b71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,3 +64,5 @@ firmware/cpld/**/*.xrpt
 firmware/cpld/**/*.xsl
 firmware/cpld/**/*.xst
 firmware/cpld/**/*.xwbt
+
+firmware/**/build