diff --git a/graphics/perceptualdiff/Makefile b/graphics/perceptualdiff/Makefile
index df3bfab968a7..59b2c744af1d 100644
--- a/graphics/perceptualdiff/Makefile
+++ b/graphics/perceptualdiff/Makefile
@@ -1,22 +1,27 @@
 PORTNAME=	perceptualdiff
 PORTVERSION=	2.1
 PORTREVISION=	2
 DISTVERSIONPREFIX=	v
 CATEGORIES=	graphics
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Program that compares two images
 WWW=		https://github.com/myint/perceptualdiff
 
 LICENSE=	GPLv2
 
 LIB_DEPENDS=	libfreeimage.so:graphics/freeimage
 
 PLIST_FILES=	bin/perceptualdiff
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	myint
 
-USES=		cmake compiler:c++0x
+USES=		cmake
+.if !exists(/usr/include/omp.h)
+USES+=		compiler:gcc-c++11-lib
+.else
+USES+=		compiler:c++0x
+.endif
 
 .include <bsd.port.mk>