diff --git a/src/test/java/org/json/junit/JSONObjectTest.java b/src/test/java/org/json/junit/JSONObjectTest.java
index 51407f0..374bc10 100644
--- a/src/test/java/org/json/junit/JSONObjectTest.java
+++ b/src/test/java/org/json/junit/JSONObjectTest.java
@@ -115,10 +115,17 @@ public class JSONObjectTest {
                 .put("key2", 2)
                 .put("key3", new String(string1));
         
-        assertFalse("Should eval to false", obj1.similar(obj2));
+        JSONObject obj4 = new JSONObject()
+                .put("key1", "abc")
+                .put("key2", 2.0)
+                .put("key3", new String(string1));
         
+        assertFalse("Should eval to false", obj1.similar(obj2));
+
         assertTrue("Should eval to true", obj1.similar(obj3));
         
+        assertTrue("Should eval to true", obj1.similar(obj4));
+        
     }
     
     @Test