diff --git a/sys/v4l2/gstv4l2bufferpool.c b/sys/v4l2/gstv4l2bufferpool.c
index b8c61bac56..cf439095f6 100644
--- a/sys/v4l2/gstv4l2bufferpool.c
+++ b/sys/v4l2/gstv4l2bufferpool.c
@@ -263,7 +263,7 @@ gst_v4l2_buffer_pool_get_type (void)
 
   if (G_UNLIKELY (_gst_v4l2_buffer_pool_type == 0)) {
     static const GTypeInfo v4l2_buffer_pool_info = {
-      sizeof (GstBufferClass),
+      sizeof (GstMiniObjectClass),
       NULL,
       NULL,
       gst_v4l2_buffer_pool_class_init,