diff --git a/ILSpy/Languages/ILAstLanguage.cs b/ILSpy/Languages/ILAstLanguage.cs
index 888a4122f..4f48c71e1 100644
--- a/ILSpy/Languages/ILAstLanguage.cs
+++ b/ILSpy/Languages/ILAstLanguage.cs
@@ -24,6 +24,7 @@ using ICSharpCode.Decompiler;
 using ICSharpCode.Decompiler.CSharp;
 using ICSharpCode.Decompiler.Disassembler;
 using ICSharpCode.Decompiler.IL;
+using ICSharpCode.Decompiler.IL.Transforms;
 using Mono.Cecil;
 
 namespace ICSharpCode.ILSpy