diff --git a/science/libkml/Makefile b/science/libkml/Makefile
index e0ea47db04f97d4503c6df240b71f8056b646137..f545aaa97ef309236f7f38b70203c33e2776ebf2 100644
--- a/science/libkml/Makefile
+++ b/science/libkml/Makefile
@@ -19,6 +19,7 @@ USES=		cmake compiler:c++11-lang minizip pathfix
 CMAKE_OFF=	BUILD_TESTING WITH_JAVA WITH_PYTHON WITH_SWIG
 CMAKE_ON=	BUILD_SHARED_LIBS
 LDFLAGS+=	-lz
+USE_CXXSTD=	c++11
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes