diff --git a/mach/z80/libbc/compmodule b/mach/z80/libbc/compmodule
index e7e4da63..9db6d714 100755
--- a/mach/z80/libbc/compmodule
+++ b/mach/z80/libbc/compmodule
@@ -1,4 +1,4 @@
-if ${MACH?ack} -DCPM -I../../../h ${MACHFL?} $1 1>&2
+if ${MACH?ack} -I../../../h ${MACHFL?} $1 1>&2
 then echo `basename $1 $2`.s
 else rm -f `basename $1 $2`.s
 fi