diff --git a/www/js/interface.js b/www/js/interface.js
index 5d732d1..f2948ca 100644
--- a/www/js/interface.js
+++ b/www/js/interface.js
@@ -1555,12 +1555,16 @@ const INTERFACE = {
     },
     replay_auto() {
         if(INTERFACE_DATA.Replay.auto) {
-            INTERFACE.replay_jump(INTERFACE_DATA.Replay.turn + 1, true);
-            setTimeout(INTERFACE.replay_auto, 1100);
+            if(INTERFACE_DATA.Replay.turn < INTERFACE_DATA.Game.history.length) {
+                INTERFACE.replay_jump(INTERFACE_DATA.Replay.turn + 1, true);
+                setTimeout(INTERFACE.replay_auto, 1100);
+            } else {
+                INTERFACE_DATA.Replay.auto = false;
+            }
         }
     },
     replay_off() {
-        INTERFACE_DATA.replay_auto = false;
+        INTERFACE_DATA.Replay.auto = false;
     },