diff --git a/src/gui/waveEdit.cpp b/src/gui/waveEdit.cpp
index 5dd9b1ccf..4d8f197da 100644
--- a/src/gui/waveEdit.cpp
+++ b/src/gui/waveEdit.cpp
@@ -313,6 +313,7 @@ void FurnaceGUI::drawWaveEdit() {
             if (ImGui::BeginTabItem("FM")) {
               waveGenFM=true;
 
+              ImGui::Text("FM stuff here");
               ImGui::EndTabItem();
             }
             if (ImGui::BeginTabItem("Mangle")) {