diff --git a/drivers/dec21140A/Makefile b/drivers/dec21140A/Makefile
index 9b9522ffc..eb7997f45 100644
--- a/drivers/dec21140A/Makefile
+++ b/drivers/dec21140A/Makefile
@@ -16,6 +16,6 @@ MAN=
 BINDIR?= /usr/sbin
 
 debug=		0
-CPPFLAGS+=	-Ddebug=${debug} -w
+CPPFLAGS+=	-Ddebug=${debug}
 
 .include <minix.service.mk>