diff --git a/src/pyson.js b/src/pyson.js
index 889a07985b..a49e0e9ff0 100644
--- a/src/pyson.js
+++ b/src/pyson.js
@@ -249,7 +249,11 @@
     });
 
     Sao.PYSON.Equal.eval_ = function(value, context) {
-        return value.s1 == value.s2;
+        if (value.s1 instanceof Array  && value.s2 instanceof Array) {
+            return Sao.common.compare(value.s1, value.s2);
+        } else {
+            return value.s1 == value.s2;
+        }
     };
 
     Sao.PYSON.Greater = Sao.class_(Sao.PYSON.PYSON, {
diff --git a/tests/sao.js b/tests/sao.js
index b846389935..11fa6d16f2 100644
--- a/tests/sao.js
+++ b/tests/sao.js
@@ -312,7 +312,17 @@
         eval_ = new Sao.PYSON.Encoder().encode(
             new Sao.PYSON.Equal('foo', 'bar'));
         QUnit.strictEqual(new Sao.PYSON.Decoder().decode(eval_), false,
-            "decode(Equal('test', 'test'))");
+            "decode(Equal('foo', 'bar'))");
+
+        eval_ = new Sao.PYSON.Encoder().encode(
+                new Sao.PYSON.Equal(['test'], ['test']));
+        QUnit.strictEqual(new Sao.PYSON.Decoder().decode(eval_), true,
+                "decode(Equal(['test'], ['test']))");
+
+        eval_ = new Sao.PYSON.Encoder().encode(
+                new Sao.PYSON.Equal(['foo'], ['bar']));
+        QUnit.strictEqual(new Sao.PYSON.Decoder().decode(eval_), false,
+                "decode(Equal(['foo'], ['bar']))");
     });
 
     QUnit.test('PYSON Greater', function() {