diff --git a/math/igraph/Makefile b/math/igraph/Makefile
index 64790b79eb20..49082e255801 100644
--- a/math/igraph/Makefile
+++ b/math/igraph/Makefile
@@ -1,30 +1,30 @@
 # Created by: Wen Heping <wenheping@gmail.com>
 
 PORTNAME=	igraph
 PORTVERSION=	0.9.5
 CATEGORIES=	math
 
 MAINTAINER=	wen@FreeBSD.org
 COMMENT=	Package For Manipulating Undirected And Directed Graphs
 
 LICENSE=	GPLv2
 
 LIB_DEPENDS=	libarpack.so:math/arpack-ng \
 		libcxsparse.so:math/suitesparse-cxsparse \
 		libglpk.so:math/glpk \
 		libgmp.so:math/gmp \
 		libopenblas.so:math/openblas
 
-USES=		bison cmake gnome libtool pathfix
+USES=		bison cmake cpe gnome libtool pathfix
 USE_GITHUB=	yes
 USE_GNOME=	libxml2
 USE_LDCONFIG=	yes
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 
 BINARY_ALIAS=	git=false
 
 pre-configure:
 	@${ECHO} ${PORTVERSION} > ${WRKSRC}/IGRAPH_VERSION
 
 .include <bsd.port.mk>