diff --git a/mesa-9999.orig/src/gallium/drivers/radeonsi/si_state_draw.c b/mesa-9999/src/gallium/drivers/radeonsi/si_state_draw.c
index e44147f..d7f3a62 100644
--- a/mesa-9999.orig/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/mesa-9999/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -580,6 +580,8 @@ static void si_emit_draw_packets(struct si_context *sctx,
 			sctx->last_index_size = ib->index_size;
 		}
 
+		if (!ib->buffer) /* HACK */
+			return;
 		index_max_size = (ib->buffer->width0 - ib->offset) /
 				  ib->index_size;
 		index_va = r600_resource(ib->buffer)->gpu_address + ib->offset;