diff --git a/include/host-build.mk b/include/host-build.mk
index 9120570c54..a2a31ae048 100644
--- a/include/host-build.mk
+++ b/include/host-build.mk
@@ -52,6 +52,7 @@ endef
 HOST_CONFIGURE_VARS = \
 	CC="$(HOSTCC)" \
 	CFLAGS="$(HOST_CFLAGS)" \
+	CXX="$(HOSTCXX)" \
 	CPPFLAGS="$(HOST_CPPFLAGS)" \
 	LDFLAGS="$(HOST_LDFLAGS)" \
 	CONFIG_SHELL="$(SHELL)"