diff --git a/lib/nvmf/rdma.c b/lib/nvmf/rdma.c
index 857234caed..b791fb6937 100644
--- a/lib/nvmf/rdma.c
+++ b/lib/nvmf/rdma.c
@@ -1177,7 +1177,7 @@ spdk_nvmf_rdma_request_fill_iovs(struct spdk_nvmf_rdma_transport *rtransport,
 nomem:
 	while (i) {
 		i--;
-		spdk_mempool_put(rtransport->data_buf_pool, rdma_req->req.iov[i].iov_base);
+		spdk_mempool_put(rtransport->data_buf_pool, rdma_req->data.buffers[i]);
 		rdma_req->req.iov[i].iov_base = NULL;
 		rdma_req->req.iov[i].iov_len = 0;
 
diff --git a/lib/nvmf/tcp.c b/lib/nvmf/tcp.c
index d0995f7b4e..7a8fe333b7 100644
--- a/lib/nvmf/tcp.c
+++ b/lib/nvmf/tcp.c
@@ -2128,7 +2128,7 @@ spdk_nvmf_tcp_req_fill_iovs(struct spdk_nvmf_tcp_transport *ttransport,
 nomem:
 	while (i) {
 		i--;
-		spdk_mempool_put(ttransport->data_buf_pool, tcp_req->req.iov[i].iov_base);
+		spdk_mempool_put(ttransport->data_buf_pool, tcp_req->buffers[i]);
 		tcp_req->req.iov[i].iov_base = NULL;
 		tcp_req->req.iov[i].iov_len = 0;