diff --git a/main.lua b/main.lua
--- a/main.lua
+++ b/main.lua
@@ -75,6 +75,7 @@ global {
 	rel_learr = 0;
 	rel_anna = 0;
 	rel_jack = 0;
+    language_known = false;
     
     dt_code = {};
     dt_buttons = {};