diff --git a/src/modules/previewpane/MonacoPreviewHandler/MonacoPreviewHandlerControl.cs b/src/modules/previewpane/MonacoPreviewHandler/MonacoPreviewHandlerControl.cs
index 68dde66e3c..c1c72d61aa 100644
--- a/src/modules/previewpane/MonacoPreviewHandler/MonacoPreviewHandlerControl.cs
+++ b/src/modules/previewpane/MonacoPreviewHandler/MonacoPreviewHandlerControl.cs
@@ -389,7 +389,7 @@ namespace Microsoft.PowerToys.PreviewHandler.Monaco
                 }
 
                 fileReader.Close();
-                _base64FileCode = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(fileContent));
+                _base64FileCode = Convert.ToBase64String(encodingToUse.GetBytes(fileContent));
                 Logger.LogInfo("Reading requested file ended");
             }