diff --git a/src/packages/markdown-preview/lib/markdown-preview-view.coffee b/src/packages/markdown-preview/lib/markdown-preview-view.coffee
index adc0d48ce..737041b0b 100644
--- a/src/packages/markdown-preview/lib/markdown-preview-view.coffee
+++ b/src/packages/markdown-preview/lib/markdown-preview-view.coffee
@@ -18,6 +18,7 @@ fenceNameToExtension =
   "bash": "sh"
   "js": "js"
   "javascript": "js"
+  "xml": "xml"
 
 module.exports =
 class MarkdownPreviewView extends ScrollView