diff --git a/mach/sun2/libcc/compmodule b/mach/sun2/libcc/compmodule
index 1b2935c70..6327cb991 100755
--- a/mach/sun2/libcc/compmodule
+++ b/mach/sun2/libcc/compmodule
@@ -1,4 +1,4 @@
-if ${MACH?} -I../../../h -DBSD4_2 ${MACHFL?} $1 1>&2
+if ${MACH?} -I../../../h ${MACHFL?} $1 1>&2
 then
 	echo `basename $1 $2`.o
 else