diff --git a/.gitignore b/.gitignore
index 9a276b266a..1333fb362f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,6 +20,7 @@ m5out
 /util/tap/m5tap
 /util/term/m5term
 /system/arm/dt/*.dtb
+/system/arm/dt/.gen
 /system/arm/simple_bootloader/*.o
 /system/arm/simple_bootloader/boot.arm
 /system/arm/simple_bootloader/boot_emm.arm