diff --git a/target/board/generic_arm64/device.mk b/target/board/generic_arm64/device.mk
index fe56fd3..42474ef 100644
--- a/target/board/generic_arm64/device.mk
+++ b/target/board/generic_arm64/device.mk
@@ -39,4 +39,7 @@
 PRODUCT_BUILD_VENDOR_BOOT_IMAGE := false
 PRODUCT_BUILD_RECOVERY_IMAGE := false
 
+# GKI devices should use vendor_boot-debug.img instead.
+PRODUCT_BUILD_DEBUG_BOOT_IMAGE := false
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/generic_ramdisk.mk)
diff --git a/target/board/generic_x86_64/device.mk b/target/board/generic_x86_64/device.mk
index d28ace7..c82e90a 100755
--- a/target/board/generic_x86_64/device.mk
+++ b/target/board/generic_x86_64/device.mk
@@ -28,4 +28,7 @@
 PRODUCT_BUILD_VENDOR_BOOT_IMAGE := false
 PRODUCT_BUILD_RECOVERY_IMAGE := false
 
+# GKI devices should use vendor_boot-debug.img instead.
+PRODUCT_BUILD_DEBUG_BOOT_IMAGE := false
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/generic_ramdisk.mk)