diff --git a/host/Makefile b/host/Makefile
index 56962ee..4e5329c 100644
--- a/host/Makefile
+++ b/host/Makefile
@@ -20,7 +20,7 @@ SRCS := $(shell find $(SRC_DIR) -name '*.s' -or -name '*.inc')
 
 CL := cl65
 
-CLFLAGS := -u __EXEHDR__ -t c64 -C c64-asm.cfg -l $(BUILD_DIR)/$(HOST_NAME).lst -Ln $(BUILD_DIR)/$(HOST_NAME).lbl
+CLFLAGS := -u __EXEHDR__ -t c64 -C c64-asm.cfg -l $(BUILD_DIR)/$(HOST_NAME).lst -Ln $(BUILD_DIR)/$(HOST_NAME).lbl -m $(BUILD_DIR)/$(HOST_NAME).m
 
 $(HOST_PRG): $(SRCS) userprog.bin
 	mkdir -p $(BUILD_DIR)