diff --git a/tests/cratestack.lua b/tests/cratestack.lua
index fec42aa..9fab274 100644
--- a/tests/cratestack.lua
+++ b/tests/cratestack.lua
@@ -53,6 +53,8 @@ function key_down_event(key)
         hit_pins:play()
     elseif (key == "l") then
         hit_pins:loop(3)
+    elseif (key == "escape" or key == "q") then
+        ag.exit()
     end
 end