diff --git a/gui/include/input_state.hpp b/gui/include/input_state.hpp
index a5bab2cb8b4fbbba2ba15ed15675010ac8bbf9d6..7dff811cade04d077f762b1ed6d46f506c958c09 100644
--- a/gui/include/input_state.hpp
+++ b/gui/include/input_state.hpp
@@ -20,6 +20,7 @@ public:
 	static bool f1_click;
 	static bool f2_click;
 	static bool f3_click;
+	static bool t_click;
 
 	//mouse position
 	static float mpos_x;