diff --git a/src/project/templates/main.html b/src/project/templates/main.html
index fc8e7b1..c0427d5 100644
--- a/src/project/templates/main.html
+++ b/src/project/templates/main.html
@@ -10,6 +10,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <meta name="google" content="notranslate">
 
+    <meta name="msvalidate.01" content="7E7A1E68251AEDF0AF320164C774E3E8"/>
+
     {% block extra_meta %}
     {% endblock %}