diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index d505603930a7..c9c297af53a7 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -370,6 +370,7 @@ void ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm)
 
 	ttm->page_flags &= ~TTM_TT_FLAG_PRIV_POPULATED;
 }
+EXPORT_SYMBOL_GPL(ttm_tt_unpopulate);
 
 #ifdef CONFIG_DEBUG_FS