diff --git a/textproc/c2html/Makefile b/textproc/c2html/Makefile
index 6d9cc738cdea..6921751787dc 100644
--- a/textproc/c2html/Makefile
+++ b/textproc/c2html/Makefile
@@ -12,8 +12,7 @@ COMMENT=	C-language sources to HTML converter
 
 LICENSE=	GPLv2
 
-USE_AUTOTOOLS=	autoconf213
-
+GNU_CONFIGURE=	yes
 PLIST_FILES=	bin/c2html man/man1/c2html.1.gz
 PORTDOCS=	AUTHORS NEWS README