diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile
index 9516ac557a272fd9195d6418f04ef809cfd00274..78ce684cf2d3ae956e44fc593cde80b0f4eb8162 100644
--- a/pc-bios/optionrom/Makefile
+++ b/pc-bios/optionrom/Makefile
@@ -24,4 +24,4 @@ build-all: multiboot.bin
 	$(call quiet-command,$(SHELL) $(SRC_PATH)/pc-bios/optionrom/signrom.sh $< $@,"  Signing $(TARGET_DIR)$@")
 
 clean:
-	$(RM) *.o *.img *.bin *~
+	$(RM) *.o *.d *.raw *.img *.bin *~