diff --git a/subsys/bluetooth/mesh/adv_ext.c b/subsys/bluetooth/mesh/adv_ext.c
index dc761c58979..242dee6027c 100644
--- a/subsys/bluetooth/mesh/adv_ext.c
+++ b/subsys/bluetooth/mesh/adv_ext.c
@@ -417,7 +417,7 @@ int bt_mesh_adv_gatt_start(const struct bt_le_adv_param *param,
 	struct bt_mesh_ext_adv *adv = gatt_adv_get();
 	struct bt_le_ext_adv_start_param start = {
 		/* Timeout is set in 10 ms steps, with 0 indicating "forever" */
-		.timeout = (duration == SYS_FOREVER_MS) ? 0 : (duration / 10),
+		.timeout = (duration == SYS_FOREVER_MS) ? 0 : MAX(1, duration / 10),
 	};
 
 	BT_DBG("Start advertising %d ms", duration);