diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index 704e879711e4f74a7b275a76019c283a1140df42..b1d5aee46316deb252b0f492e6bada9acf9182fd 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -194,7 +194,7 @@ static struct ttm_tt *bochs_ttm_tt_create(struct ttm_bo_device *bdev,
 	return tt;
 }
 
-struct ttm_bo_driver bochs_bo_driver = {
+static struct ttm_bo_driver bochs_bo_driver = {
 	.ttm_tt_create = bochs_ttm_tt_create,
 	.ttm_tt_populate = ttm_pool_populate,
 	.ttm_tt_unpopulate = ttm_pool_unpopulate,