diff --git a/src/nv10_exa.c b/src/nv10_exa.c
index 52f01ea..a5e63f1 100644
--- a/src/nv10_exa.c
+++ b/src/nv10_exa.c
@@ -782,7 +782,7 @@ void NV10EXAComposite(PixmapPtr pDst,
 	float sX0, sX1, sX2, sY0, sY1, sY2, sX3, sY3;
 	float mX0, mX1, mX2, mY0, mY1, mY2, mX3, mY3;
 
-	WAIT_RING (chan, 64);
+	WAIT_RING (chan, 256);
 	BEGIN_RING(chan, celsius, NV10TCL_VERTEX_BEGIN_END, 1);
 	OUT_RING  (chan, NV10TCL_VERTEX_BEGIN_END_QUADS);