diff --git a/lib/discrepances.js b/lib/discrepances.js
index 7b9b274..5537a9d 100644
--- a/lib/discrepances.js
+++ b/lib/discrepances.js
@@ -202,6 +202,10 @@ function DiscrepancesTester(tester){
     this.message = bestGlobals.functionName(tester);
 }
 
+function getName(type, variable, clase) {
+    return type==='object' && variable.constructor ? constructorName(variable):clase;
+}
+
 discrepances = function discrepances(a, b, opts){
     opts = changing(defaultOpts, opts||{});
     if(a === b){ return null; }
@@ -221,12 +225,14 @@ discrepances = function discrepances(a, b, opts){
         if(typeA==='object' && typeB==='object') {
             var classA = getClassOnlyForSomeOfBuiltIns(a, opts);
             var classB = getClassOnlyForSomeOfBuiltIns(b, opts);
+            var nameA = getName(typeA,a,classA);
+            var nameB = getName(typeB,b,classB);
             if(classA !== classB) {
-                var r = {classes:[classA,classB]};
+                var r = {classes:[nameA,nameB]};
                 if(isSimpleValue(classA) && isSimpleValue(classB)) { r.values=[a,b]; }
                 return r;
             } else if(!opts.duckTyping && a.constructor !== b.constructor) {
-                return {classes:[constructorName(a),constructorName(b)]};
+                return {classes:[nameA,nameB]};
             } else {
                 return compareClasses(classA, a, b, opts);  
             }
diff --git a/test/test.js b/test/test.js
index febde8e..4d6c12b 100644
--- a/test/test.js
+++ b/test/test.js
@@ -65,7 +65,7 @@ describe("discrepances", function(){
         {a:undefined             , b:false              , expect:{types:['undefined', 'boolean'], values:[undefined, false]} },
         {a:new Example({uno:1})  , b:new Example({uno:1})           , expect:null                                            },
         {a:new Example({uno:1})  , b:{uno:1}                        , expect:{classes:['Example', 'Object']}                 },
-        {skip:'#5', a:new Example({uno:1})  , b:[1,2]                          , expect:{classes:['Example', 'Array']}                  },
+        {a:new Example({uno:1})  , b:[1,2]                          , expect:{classes:['Example', 'Array']}                  },
         {a:new Example({uno:1})  , b:new Example({uno:2})           , expect:{object:{"uno":discrepances(1,2)}}              },
         {a:{0:1, length:1}       , b:{0:1,1:2,length:2}             ,
          expect:{object:{length:discrepances(1,2), 1:{onlyRight:2}}}