Index: x11/nvidia-driver/Makefile
===================================================================
--- x11/nvidia-driver/Makefile
+++ x11/nvidia-driver/Makefile
@@ -45,7 +45,8 @@
 WAYLAND_JSON_PATH=	${PREFIX}/share/egl/egl_external_platform.d
 MAKE_ENV=	NVIDIA_ROOT=${WRKSRC} X11BASE=${LOCALBASE} \
 		EGL_GLVND_JSON_PATH=${STAGEDIR}${GLVND_JSON_PATH} \
-		EGL_WAYLAND_JSON_PATH=${STAGEDIR}${WAYLAND_JSON_PATH}
+		EGL_WAYLAND_JSON_PATH=${STAGEDIR}${WAYLAND_JSON_PATH} \
+		DEBUG_FLAGS=${DEBUG_FLAGS}
 SUB_FILES=	pkg-message nvidia.conf
 .if ${NVVERSION} < 410.057
 SUB_FILES+=	pkg-deinstall pkg-install