diff --git a/comms/gkermit/Makefile b/comms/gkermit/Makefile
index 36599f3407c7..27ac61996af5 100644
--- a/comms/gkermit/Makefile
+++ b/comms/gkermit/Makefile
@@ -1,6 +1,6 @@
 PORTNAME=	gkermit
 PORTVERSION=	1.0
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	comms
 MASTER_SITES=	ftp://ftp.kermitproject.org/kermit/archives/
 DISTNAME=	gku100
@@ -16,6 +16,8 @@ MAKEFILE=	makefile
 
 OPTIONS_DEFINE=	DOCS
 
+CFLAGS+=	-DERRNO_H
+
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/gkermit ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/gkermit.nr ${STAGEDIR}${PREFIX}/share/man/man1/gkermit.1