diff --git a/gst/vaapi/gstvaapivideomemory.h b/gst/vaapi/gstvaapivideomemory.h
index 6254f324e3..c096a03b11 100644
--- a/gst/vaapi/gstvaapivideomemory.h
+++ b/gst/vaapi/gstvaapivideomemory.h
@@ -206,14 +206,17 @@ GstAllocator *
 gst_vaapi_dmabuf_allocator_new (GstVaapiDisplay * display,
     const GstVideoInfo * vip, guint flags);
 
+G_GNUC_INTERNAL
 const GstVideoInfo *
 gst_allocator_get_vaapi_video_info (GstAllocator * allocator,
     guint * out_flags_ptr);
 
+G_GNUC_INTERNAL
 gboolean
 gst_allocator_set_vaapi_video_info (GstAllocator * allocator,
     const GstVideoInfo * vip, guint flags);
 
+G_GNUC_INTERNAL
 gboolean
 gst_vaapi_is_dmabuf_allocator (GstAllocator * allocator);