diff --git a/examples/waver/common.cpp b/examples/waver/common.cpp
index 83d69a2..556751b 100644
--- a/examples/waver/common.cpp
+++ b/examples/waver/common.cpp
@@ -1131,6 +1131,12 @@ void renderMain() {
             ImGui::SetCursorScreenPos({ posSave.x + kLabelWidth, posSave.y });
             ImGui::TextDisabled("[DT] = dual-tone");
         }
+        {
+            auto posSave = ImGui::GetCursorScreenPos();
+            ImGui::Text("%s", "");
+            ImGui::SetCursorScreenPos({ posSave.x + kLabelWidth, posSave.y });
+            ImGui::TextDisabled("[MT] = mono-tone");
+        }
         {
             auto posSave = ImGui::GetCursorScreenPos();
             ImGui::Text("Tx Protocol: ");