diff --git a/src/panfrost/vulkan/panvk_mempool.c b/src/panfrost/vulkan/panvk_mempool.c
index 2d2a3bbf27b..db9f020d72f 100644
--- a/src/panfrost/vulkan/panvk_mempool.c
+++ b/src/panfrost/vulkan/panvk_mempool.c
@@ -149,7 +149,7 @@ panvk_pool_alloc_mem(struct panvk_pool *pool, struct panvk_pool_alloc_info info)
    unsigned offset = ALIGN_POT(pool->transient_offset, info.alignment);
 
    /* If we don't fit, allocate a new backing */
-   if (unlikely(bo == NULL || (offset + info.size) > pool->base.slab_size)) {
+   if (unlikely(bo == NULL || offset + info.size > pan_kmod_bo_size(bo->bo))) {
       bo = panvk_pool_alloc_backing(pool, info.size);
       offset = 0;
    }