diff --git a/src/ai/ai_gui.hpp b/src/ai/ai_gui.hpp
new file mode 100644
--- /dev/null
+++ b/src/ai/ai_gui.hpp
@@ -0,0 +1,10 @@
+/* $Id$ */
+
+/** @file ai_gui.hpp Window for configuring the AIs  */
+
+#ifndef AI_GUI_HPP
+#define AI_GUI_HPP
+
+void ShowAIDebugWindow();
+
+#endif /* AI_GUI_HPP */