diff --git a/drivers/gpu/drm/tegra/uapi.c b/drivers/gpu/drm/tegra/uapi.c
index 83daee783236..f2ba8af88f10 100644
--- a/drivers/gpu/drm/tegra/uapi.c
+++ b/drivers/gpu/drm/tegra/uapi.c
@@ -215,7 +215,7 @@ int tegra_drm_ioctl_channel_map(struct drm_device *drm, void *data,
 		mapping->iova = sg_dma_address(mapping->sgt->sgl);
 	}
 
-	mapping->iova_end = mapping->iova + host1x_to_tegra_bo(mapping->bo)->size;
+	mapping->iova_end = mapping->iova + host1x_to_tegra_bo(mapping->bo)->gem.size;
 
 	err = xa_alloc(&ctx->mappings, &args->mapping_id, mapping,
 		       XA_LIMIT(1, U32_MAX), GFP_KERNEL);