diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 0e4d8fe2..1e58860d 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -2947,7 +2947,7 @@ sna_drawable_use_bo(DrawablePtr drawable, unsigned flags, const BoxRec *box,
 	     box->x1, box->y1, box->x2, box->y2,
 	     flags));
 
-	assert((hint & REPLACES) == 0 || (hint & IGNORE_CPU));
+	assert((flags & REPLACES) == 0 || (flags & IGNORE_CPU));
 
 	assert(box->x2 > box->x1 && box->y2 > box->y1);
 	assert(pixmap->refcnt);