diff --git a/math/drgeo/Makefile b/math/drgeo/Makefile
index e69bfc360d82..fcea1b4db424 100644
--- a/math/drgeo/Makefile
+++ b/math/drgeo/Makefile
@@ -17,10 +17,12 @@ BROKEN_powerpc64=	fails to compile: ./geo/libgeo.a: multiple definition of drgeo
 
 LIB_DEPENDS=	libguile.so:lang/guile
 
-GNU_CONFIGURE=	yes
 USES=		gettext gmake localbase:ldflags pkgconfig pathfix
+GNU_CONFIGURE=	yes
 USE_GNOME=	gnomeprefix intlhack libglade2
 
+CXXFLAGS+=	-Wno-reserved-user-defined-literal
+
 PORTDATA=	*
 
 post-patch: