diff --git a/libs/control.js b/libs/control.js
index 6333fe22..df2efb46 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -684,7 +684,7 @@ control.prototype.automaticRoute = function (destX, destY) {
             }
             deepAdd+=core.status.checkBlock.damage[nid]*10;
             // 绕过捕捉
-            if (core.status.checkBlock.ambush[nid])
+            if ((core.status.checkBlock.ambush||[])[nid])
                 deepAdd += 10000;
 
             if (nx == destX && ny == destY) {
@@ -1288,7 +1288,7 @@ control.prototype.checkBlock = function () {
             core.snipe(snipe);
     }
     // 检查捕捉
-    var ambush = core.status.checkBlock.ambush[x+core.bigmap.width*y];
+    var ambush = (core.status.checkBlock.ambush||[])[x+core.bigmap.width*y];
     if (core.isset(ambush)) {
         // 捕捉效果
         var actions = [];
diff --git a/libs/maps.js b/libs/maps.js
index b1ab018d..c11bc33c 100644
--- a/libs/maps.js
+++ b/libs/maps.js
@@ -427,7 +427,7 @@ maps.prototype.canMoveDirectly = function (destX,destY) {
             if (!core.canMoveHero(nowX, nowY, dir)) continue;
             var nx=nowX+directions[dir][0], ny=nowY+directions[dir][1];
             if (nx<0||nx>=core.bigmap.width||ny<0||ny>=core.bigmap.height||visited[nx+core.bigmap.width*ny]||core.getBlock(nx,ny)!=null
-                ||core.status.checkBlock.damage[nx+core.bigmap.width*ny]>0||core.status.checkBlock.ambush[nx+core.bigmap.width*ny]) continue;
+                ||core.status.checkBlock.damage[nx+core.bigmap.width*ny]>0||(core.status.checkBlock.ambush||[])[nx+core.bigmap.width*ny]) continue;
             visited[nx+core.bigmap.width*ny]=visited[nowX+core.bigmap.width*nowY]+1;
             if (nx==destX&&ny==destY) return visited[nx+core.bigmap.width*ny];
             queue.push(nx+core.bigmap.width*ny);