diff --git a/src/buffer.c b/src/buffer.c
index 6039707..dc835f7 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -20,6 +20,7 @@
 #include <stdbool.h>
 #include <assert.h>
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <libdrm/drm_fourcc.h>
 #include <wayland-client.h>
 #include <pixman.h>
@@ -224,6 +225,11 @@ static struct wv_buffer* wv_buffer_create_dmabuf(int width, int height,
 	self->height = height;
 	self->format = fourcc;
 
+	int device_fd = gbm_device_get_fd(gbm);
+	struct stat st = {};
+	fstat(device_fd, &st);
+	self->node = st.st_rdev;
+
 #ifdef HAVE_LINUX_DMA_HEAP
 	self->bo = have_linux_cma() ?
 		create_cma_gbm_bo(width, height, fourcc, gbm) :