diff --git a/usr.sbin/ntp/ntpq/Makefile b/usr.sbin/ntp/ntpq/Makefile
index f7159f099844..a296bffa3fa9 100644
--- a/usr.sbin/ntp/ntpq/Makefile
+++ b/usr.sbin/ntp/ntpq/Makefile
@@ -17,7 +17,7 @@ LDADD=	${LIBNTP} -lmd
 DPADD+=		${LIBREADLINE} ${LIBTERMCAP}
 LDADD+=		-lreadline -ltermcap
 CFLAGS+=	-DHAVE_LIBREADLINE -DHAVE_READLINE_HISTORY_H \
-i		-DHAVE_READLINE_READLINE_H
+		-DHAVE_READLINE_READLINE_H
 .endif
 
 CLEANFILES+= .version version.c