diff --git a/dtbo/dtbo.mk b/dtbo/dtbo.mk
index 192f913..06ac75f 100644
--- a/dtbo/dtbo.mk
+++ b/dtbo/dtbo.mk
@@ -1,7 +1,7 @@
 APPEND_CERTS := $(DEVICE_PATH)/dtbo/append_certs.py
 BOARD_DTBO_CFG := $(DTBO_OUT)/dtboimg.cfg
 MKDTIMG := $(HOST_OUT_EXECUTABLES)/mkdtimg$(HOST_EXECUTABLE_SUFFIX)
-MKDTBOIMG := $(HOST_OUT_EXECUTABLES)/mkdtboimg.py$(HOST_EXECUTABLE_SUFFIX)
+MKDTBOIMG := $(HOST_OUT_EXECUTABLES)/mkdtboimg$(HOST_EXECUTABLE_SUFFIX)
 
 $(BOARD_PREBUILT_DTBOIMAGE): $(DTC) $(MKDTIMG) $(MKDTBOIMG)
 $(BOARD_PREBUILT_DTBOIMAGE):