diff --git a/ICSharpCode.Decompiler/CSharp/Resolver/CSharpResolver.cs b/ICSharpCode.Decompiler/CSharp/Resolver/CSharpResolver.cs
index 8a34310960..70b066dc82 100644
--- a/ICSharpCode.Decompiler/CSharp/Resolver/CSharpResolver.cs
+++ b/ICSharpCode.Decompiler/CSharp/Resolver/CSharpResolver.cs
@@ -1,4 +1,4 @@
-// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
+// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy of this
 // software and associated documentation files (the "Software"), to deal in the Software
@@ -1760,7 +1760,7 @@ ResolveResult LookInUsingScopeNamespace(ResolvedUsingScope usingScope, INamespac
 			}
 			// then look for a type
 			ITypeDefinition def = n.GetTypeDefinition(identifier, k);
-			if (def != null)
+			if (def != null && TopLevelTypeDefinitionIsAccessible(def))
 			{
 				IType result = def;
 				if (parameterizeResultType && k > 0)