diff --git a/lib/make/mb_sdcc.mk b/lib/make/mb_sdcc.mk
index e8fe860..d22e035 100644
--- a/lib/make/mb_sdcc.mk
+++ b/lib/make/mb_sdcc.mk
@@ -1,11 +1,11 @@
 
 MB_SDCC_FLAG_CPU    ?= -mz80
 MB_SDCC_FLAG_LD     ?= --nostdinc
-MB_SDCC_ASM_FLAGS   ?= -g -l -c -o
+MB_SDCC_ASZ80_FLAGS ?= -g -l -c -o
 MB_SDCC_CC_FLAGS    ?=
 MB_SDCC_AR_FLAGS    ?= -rc
 MB_SDCC_CC_CMD      ?= $(PATH_SDCC)/sdcc
-MB_SDCC_ASM_CMD     ?= $(PATH_SDCC)/sdasz80
+MB_SDCC_ASZ80_CMD   ?= $(PATH_SDCC)/sdasz80
 MB_SDCC_AR_CMD      ?= $(PATH_SDCC)/sdar
 MB_SDCC_OBJCOPY_CMD ?= $(PATH_SDCC)/sdobjcopy
 
@@ -15,7 +15,7 @@ MB_SDCC_OBJCOPY_CMD ?= $(PATH_SDCC)/sdobjcopy
 
 define mb_sdcc_compile_asm
 	@echo === Compile module asm.
-	$(MB_SDCC_ASM_CMD) $(MB_SDCC_ASM_FLAGS) $(1) $(2)
+	$(MB_SDCC_ASZ80_CMD) $(MB_SDCC_ASZ80_FLAGS) $(1) $(2)
 endef
 
 define mb_sdcc_link_asm_lib