diff --git a/libs/utils.js b/libs/utils.js
index 1fa25724..b30fd953 100644
--- a/libs/utils.js
+++ b/libs/utils.js
@@ -63,7 +63,7 @@ utils.prototype.calValue = function (value, prefix, need, times) {
     value=value.replace(/status:([\w\d_]+)/g, "core.getStatus('$1')");
     value=value.replace(/item:([\w\d_]+)/g, "core.itemCount('$1')");
     value=value.replace(/flag:([\w\d_]+)/g, "core.getFlag('$1', 0)");
-    value=value.replace(/switch:([A-Z])/g, "core.getFlag('"+(prefix||"global")+"@$1', 0)");
+    value=value.replace(/switch:([\w\d_]+)/g, "core.getFlag('"+(prefix||"global")+"@$1', 0)");
     return eval(value);
 }