diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 6f1bf2657d2..f1162393df2 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -323,7 +323,9 @@ static void ttm_bo_vm_open(struct vm_area_struct *vma)
 
 	WARN_ON(bo->bdev->dev_mapping != vma->vm_file->f_mapping);
 
+#ifndef __FreeBSD__
 	(void)ttm_bo_reference(bo);
+#endif
 }
 
 static void ttm_bo_vm_close(struct vm_area_struct *vma)