diff --git a/ICSharpCode.Decompiler/CSharp/Syntax/TypeSystemAstBuilder.cs b/ICSharpCode.Decompiler/CSharp/Syntax/TypeSystemAstBuilder.cs
index 17b8967102e..411ff206316 100644
--- a/ICSharpCode.Decompiler/CSharp/Syntax/TypeSystemAstBuilder.cs
+++ b/ICSharpCode.Decompiler/CSharp/Syntax/TypeSystemAstBuilder.cs
@@ -533,6 +533,7 @@ AstType ConvertTypeHelper(IType genericType, IReadOnlyList<IType> typeArguments)
 			{
 				// Handle nested types
 				result.Target = ConvertTypeHelper(genericType.DeclaringType, typeArguments);
+				AddTypeAnnotation(result.Target, genericType.DeclaringType);
 			}
 			else
 			{