diff --git a/src/Spring/Spring.Aop/Aop/Framework/AopUtils.cs b/src/Spring/Spring.Aop/Aop/Framework/AopUtils.cs
index 7efc7b54..6a489af0 100644
--- a/src/Spring/Spring.Aop/Aop/Framework/AopUtils.cs
+++ b/src/Spring/Spring.Aop/Aop/Framework/AopUtils.cs
@@ -60,7 +60,7 @@ namespace Spring.Aop.Framework
         /// <returns><see langword="true"/> if the supplied <paramref name="objectType"/> is an AOP proxy type.</returns>
         public static bool IsAopProxyType(Type objectType)
         {
-            return IsCompositionAopProxyType(objectType) || IsDecoratorAopProxyType(objectType);
+            return IsCompositionAopProxyType(objectType) || IsDecoratorAopProxyType(objectType) || IsInheritanceAopProxyType(objectType);
         }
 
         /// <summary>
@@ -77,7 +77,7 @@ namespace Spring.Aop.Framework
         /// </returns>
         public static bool IsAopProxy(object instance)
         {
-            return IsCompositionAopProxy(instance) || IsDecoratorAopProxy(instance);
+            return IsCompositionAopProxy(instance) || IsDecoratorAopProxy(instance) || IsInheritanceAopProxy(instance);
         }
 
         /// <summary>
diff --git a/test/Spring/Spring.Aop.Tests/Aop/Framework/DynamicProxy/IsAopProxyTests.cs b/test/Spring/Spring.Aop.Tests/Aop/Framework/DynamicProxy/IsAopProxyTests.cs
index 653355c3..29e8afa1 100644
--- a/test/Spring/Spring.Aop.Tests/Aop/Framework/DynamicProxy/IsAopProxyTests.cs
+++ b/test/Spring/Spring.Aop.Tests/Aop/Framework/DynamicProxy/IsAopProxyTests.cs
@@ -22,6 +22,8 @@ namespace Spring.Aop.Framework.DynamicProxy
         public void TargetIsNotAProxy()
         {
             Assert.False(AopUtils.IsAopProxy(_target));
+            Assert.False(AopUtils.IsInheritanceAopProxy(_target));
+            Assert.False(AopUtils.IsInheritanceAopProxyType(_target.GetType()));
         }
 
         [Test]
@@ -69,8 +71,12 @@ namespace Spring.Aop.Framework.DynamicProxy
             {
                 var proxy = (TestObject)ctx["michael"];
                 Assert.AreEqual("Michael", proxy.Name);
+                
                 Assert.True(AopUtils.IsInheritanceAopProxyType(proxy.GetType()));
+                Assert.True(AopUtils.IsAopProxyType(proxy.GetType()));
+
                 Assert.True(AopUtils.IsInheritanceAopProxy(proxy));
+                Assert.True(AopUtils.IsAopProxy(proxy));
             }
         }
     }