diff --git a/ICSharpCode.Decompiler/Metadata/UniversalAssemblyResolver.cs b/ICSharpCode.Decompiler/Metadata/UniversalAssemblyResolver.cs
index 67615ca79..48761958c 100644
--- a/ICSharpCode.Decompiler/Metadata/UniversalAssemblyResolver.cs
+++ b/ICSharpCode.Decompiler/Metadata/UniversalAssemblyResolver.cs
@@ -138,7 +138,7 @@ namespace ICSharpCode.Decompiler.Metadata
 			this.dotNetCorePathFinder = new Lazy<DotNetCorePathFinder>(InitDotNetCorePathFinder);
 			if (mainAssemblyFileName != null)
 			{
-				string baseDirectory = Path.GetDirectoryName(mainAssemblyFileName);
+				this.baseDirectory = Path.GetDirectoryName(mainAssemblyFileName);
 				if (string.IsNullOrWhiteSpace(this.baseDirectory))
 					this.baseDirectory = Environment.CurrentDirectory;
 				AddSearchDirectory(baseDirectory);