diff --git a/programs/develop/libraries/menuetlibc/src/Make.rules b/programs/develop/libraries/menuetlibc/src/Make.rules
index 7911b513e2..fb86c79569 100755
--- a/programs/develop/libraries/menuetlibc/src/Make.rules
+++ b/programs/develop/libraries/menuetlibc/src/Make.rules
@@ -19,7 +19,7 @@ DEBUG = 0
 	
 .s.o:
 	$(CPP) -nostdinc -I$(MENUETDEV)/include $*.s -o $*.sx $(CSFLAGS) -DMENUETDEV=$(MENUETDEV) -D__DEV_CONFIG_H=\"$(MENUETDEV)/config.h\"
-	as $*.sx $(AS32OPT) -o $*.o
+	$(AS) $*.sx $(AS32OPT) -o $*.o
 	$(RM) $*.sx
 
 ATHIS_LIBC_OBJS += $(subst .c,.o,$(filter %.c,$(THIS_SRCS))) \