diff --git a/build/tasks/dtbo.mk b/build/tasks/dtbo.mk
index cbe1214a..19e9a7c0 100644
--- a/build/tasks/dtbo.mk
+++ b/build/tasks/dtbo.mk
@@ -1,6 +1,10 @@
 ifneq ($(TARGET_NO_KERNEL),true)
 ifeq ($(strip $(BOARD_KERNEL_SEPARATED_DTBO)),true)
 
+ifneq ($(BOARD_CUSTOM_DTBOIMG_MK),)
+include $(BOARD_CUSTOM_DTBOIMG_MK)
+else
+
 MKDTIMG := $(HOST_OUT_EXECUTABLES)/mkdtimg$(HOST_EXECUTABLE_SUFFIX)
 
 # Most specific paths must come first in possible_dtbo_dirs
@@ -21,5 +25,6 @@ endef
 $(BOARD_PREBUILT_DTBOIMAGE): $(MKDTIMG) $(INSTALLED_KERNEL_TARGET)
 	$(build-dtboimage-target)
 
+endif # BOARD_CUSTOM_DTBOIMG_MK
 endif # BOARD_KERNEL_SEPARATED_DTBO
 endif # TARGET_NO_KERNEL