diff --git a/markdown-preview-mode.el b/markdown-preview-mode.el
index b5280bf..450c1c8 100644
--- a/markdown-preview-mode.el
+++ b/markdown-preview-mode.el
@@ -101,6 +101,10 @@
 (defvar markdown-preview--home-dir (file-name-directory load-file-name)
   "`markdown-preview-mode' home directory.")
 
+(defvar markdown-preview--preview-template
+  (expand-file-name "preview.html" markdown-preview--home-dir)
+  "`markdown-preview-mode' html preview template.")
+
 (defvar markdown-preview--idle-timer nil
   "Preview idle timer.")
 
@@ -144,7 +148,7 @@
 (defun markdown-preview--read-preview-template (preview-uuid preview-file)
   "Read preview template and writes identified by PREVIEW-UUID rendered copy to PREVIEW-FILE, ready to be open in browser."
   (with-temp-file preview-file
-    (insert-file-contents (expand-file-name "preview.html" markdown-preview--home-dir))
+    (insert-file-contents markdown-preview--preview-template)
     (when (search-forward "${MD_STYLE}" nil t)
         (replace-match (markdown-preview--css) t))
     (when (search-forward "${MD_JS}" nil t)