diff --git a/src/Stryker.Core/Stryker.Core/Initialisation/CsharpProjectComponentsBuilder.cs b/src/Stryker.Core/Stryker.Core/Initialisation/CsharpProjectComponentsBuilder.cs
index 3c6d98719c..23b905effb 100644
--- a/src/Stryker.Core/Stryker.Core/Initialisation/CsharpProjectComponentsBuilder.cs
+++ b/src/Stryker.Core/Stryker.Core/Initialisation/CsharpProjectComponentsBuilder.cs
@@ -89,7 +89,7 @@ private CsharpFolderComposite FindProjectFilesUsingBuildalyzer(IAnalyzerResult a
                 var relativePath = Path.GetRelativePath(sourceProjectDir, sourceFile);
                 var folderComposite = GetOrBuildFolderComposite(cache, Path.GetDirectoryName(relativePath), sourceProjectDir, projectUnderTestFolderComposite);
 
-                var file = new CsharpFileLeaf()
+                var file = new CsharpFileLeaf(options.Mutate)
                 {
                     SourceCode = FileSystem.File.ReadAllText(sourceFile),
                     FullPath = sourceFile,
@@ -197,7 +197,7 @@ private CsharpFolderComposite FindInputFiles(string path, string sourceProjectDi
                 // Roslyn cannot compile xaml.cs files generated by xamarin. 
                 // Since the files are generated they should not be mutated anyway, so skip these files.
 
-                var fileLeaf = new CsharpFileLeaf()
+                var fileLeaf = new CsharpFileLeaf(_options.Mutate)
                 {
                     SourceCode = FileSystem.File.ReadAllText(file),
                     FullPath = file,