diff --git a/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c b/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
index 57b72c0f2..5f867fabc 100644
--- a/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
+++ b/test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
@@ -1100,7 +1100,7 @@ test_reservation_notification_log_page(void)
 	struct spdk_nvmf_ns ns;
 	struct spdk_nvmf_request req;
 	union nvmf_h2c_msg cmd;
-	union nvmf_c2h_msg rsp;
+	union nvmf_c2h_msg rsp = {{0}};
 	union spdk_nvme_async_event_completion event = {0};
 	struct spdk_nvme_reservation_notification_log logs[3];