diff --git a/lib/PatternLock.js b/lib/PatternLock.js
index 63400dd..dbc89f6 100644
--- a/lib/PatternLock.js
+++ b/lib/PatternLock.js
@@ -245,9 +245,9 @@ var PatternLock = function () {
       var iObj = privateMap.get(this);
 
       var option = iObj.option,
-          matrix = iObj.matrix,
-          margin = iObj.margin,
-          radius = iObj.radius;
+          matrix = option.matrix,
+          margin = option.margin,
+          radius = option.radius;
 
       // allow to set password manually only when enable set pattern option is true