diff --git a/gbm.c b/gbm.c
index 25b4fa0..a720461 100644
--- a/gbm.c
+++ b/gbm.c
@@ -249,7 +249,7 @@
 PUBLIC void gbm_bo_unmap(struct gbm_bo *bo, void *map_data)
 {
 	assert(bo);
-	drv_bo_flush(bo->bo, map_data);
+	drv_bo_flush_or_unmap(bo->bo, map_data);
 }
 
 PUBLIC uint32_t gbm_bo_get_width(struct gbm_bo *bo)