diff --git a/Scripts/AutoBuild_DiyScript.sh b/Scripts/AutoBuild_DiyScript.sh
index 316ac7f..fdf0bca 100644
--- a/Scripts/AutoBuild_DiyScript.sh
+++ b/Scripts/AutoBuild_DiyScript.sh
@@ -12,7 +12,7 @@ Diy_Core() {
 	Load_CustomPackages_List=true
 	Short_Firmware_Date=true
 	Checkout_Virtual_Images=false
-	Firmware_Format=false
+	Firmware_Format=AUTO
 	REGEX_Skip_Checkout="packages|buildinfo|sha256sums|manifest|kernel|rootfs|factory"
 
 	INCLUDE_AutoBuild_Features=true