diff --git a/src/mesa/drivers/dri/nouveau/nouveau_sync.c b/src/mesa/drivers/dri/nouveau/nouveau_sync.c
index e27101d8689..0bf20e723bb 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_sync.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_sync.c
@@ -125,6 +125,11 @@ GLboolean nouveauSyncInitFuncs(GLcontext *ctx)
 	 */
 	BEGIN_RING_CACHE(NvSub3D, 0x180, 1);
 	OUT_RING_CACHE  (NvSyncNotify);
+#ifdef ALLOW_MULTI_SUBCHANNEL
+	BEGIN_RING_SIZE(NvSubMemFormat,
+	      		NV_MEMORY_TO_MEMORY_FORMAT_DMA_NOTIFY, 1);
+	OUT_RING       (NvSyncNotify);
+#endif
 
 	return GL_TRUE;
 }