diff --git a/luasrc/view/themes/argon/header.htm b/luasrc/view/themes/argon/header.htm
index 5e72744..383222c 100644
--- a/luasrc/view/themes/argon/header.htm
+++ b/luasrc/view/themes/argon/header.htm
@@ -110,7 +110,7 @@
 		<%=css %>
 	</style>
 	<% end -%>
-	<script src=”https://cdn.polyfill.io/v2/polyfill.min.js"></script>
+	<script src="https://cdn.polyfill.io/v2/polyfill.min.js"></script>
 	<script src="<%=url('admin/translations', luci.i18n.context.lang)%>?v=2.2.4"></script>
 	<script src="<%=resource%>/cbi.js?v=2.2.4"></script>
 	<script src="<%=resource%>/luci.js?v=2.2.4"></script>