[docs] fixes #5697
diff --git a/erpnext/docs/license.html b/erpnext/docs/license.html
index b0310f6..6aa4e64 100644
--- a/erpnext/docs/license.html
+++ b/erpnext/docs/license.html
@@ -13,7 +13,7 @@
 
 <p>Version 3, 29 June 2007</p>
 
-<p>http://www.gnu.org/copyleft/gpl.html</p>
+<p><a href="http://www.gnu.org/copyleft/gpl.html" rel="nofollow">http://www.gnu.org/copyleft/gpl.html</a></p>
 
 <p>TERMS AND CONDITIONS
 0. Definitions.</p>