diff --git a/src/sna/sna_damage.h b/src/sna/sna_damage.h
index d74d5de4..67c44c34 100644
--- a/src/sna/sna_damage.h
+++ b/src/sna/sna_damage.h
@@ -147,14 +147,15 @@ static inline void sna_damage_reduce_all(struct sna_damage **damage,
 	if (*damage == NULL)
 		return;
 
-	if ((*damage)->dirty && (*damage = _sna_damage_reduce(*damage)) == NULL)
-		return;
-
 	if ((*damage)->mode == DAMAGE_ADD &&
 	    (*damage)->extents.x1 <= 0 &&
 	    (*damage)->extents.y1 <= 0 &&
 	    (*damage)->extents.x2 >= width &&
 	    (*damage)->extents.y2 >= height) {
+		if ((*damage)->dirty &&
+		    (*damage = _sna_damage_reduce(*damage)) == NULL)
+			return;
+
 		if ((*damage)->region.data == NULL)
 			*damage = _sna_damage_all(*damage, width, height);
 	}