diff --git a/src/main.cpp b/src/main.cpp
index c4eefb2..9017845 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -34,6 +34,7 @@ static void handle_serial_port_gui(ImuSerial &imu_comm)
 	ImGui::InputText("Serial Device", foo, sizeof(foo));
 	ImGui::InputInt("Baudrate", &baud_rate);
 	bool button = ImGui::Button((runs ? "Stop" : "Start"));
+	ImGui::Text("(c) Mario Huettel, GPLv2");
 	ImGui::End();
 
 	if (button) {