diff --git a/ICSharpCode.ILSpyX/AssemblyList.cs b/ICSharpCode.ILSpyX/AssemblyList.cs
index 190f45e52..e48174829 100644
--- a/ICSharpCode.ILSpyX/AssemblyList.cs
+++ b/ICSharpCode.ILSpyX/AssemblyList.cs
@@ -405,7 +405,6 @@ namespace ICSharpCode.ILSpyX
 			VerifyAccess();
 			lock (lockObj)
 			{
-				dirty = true;
 				assemblies.Clear();
 				byFilename.Clear();
 			}