diff --git a/graphics/pngnq/Makefile b/graphics/pngnq/Makefile
index 326e0a52bbf0..30f002c12658 100644
--- a/graphics/pngnq/Makefile
+++ b/graphics/pngnq/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	pngnq
 PORTVERSION=	0.5
+PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	SF
 DISTNAME=	${PORTNAME}-${PORTVERSION}-src
@@ -19,7 +20,7 @@ LIB_DEPENDS=	png.5:${PORTSDIR}/graphics/png
 WRKSRC=		${WRKDIR}/${PORTVERSION}
 
 USE_GMAKE=	yes
-MAKE_ARGS=	CC="${CC}" CFLAGS="${CFLAGS} -I${LOCALBASE}/include -DVERSION='${PORTVERSION}'" \
+MAKE_ARGS=	CC="${CC}" CFLAGS="${CFLAGS} -I${LOCALBASE}/include -DVERSION='\"${PORTVERSION}\"'" \
 		LDFLAGS="-lpng -lz -lm -L${LOCALBASE}/lib"
 
 PORTDOCS=	README LICENSE README.pngcomp