diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index d439e44db8..0d9b980151 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -2188,7 +2188,8 @@ static uint16_t nvme_do_write(NvmeCtrl *n, NvmeRequest *req, bool append,
                 goto invalid;
             }
 
-            if (n->params.zasl && data_size > n->page_size << n->params.zasl) {
+            if (n->params.zasl &&
+                data_size > (uint64_t)n->page_size << n->params.zasl) {
                 trace_pci_nvme_err_zasl(data_size);
                 return NVME_INVALID_FIELD | NVME_DNR;
             }