diff --git a/index.html b/index.html
index 38c5fee..2fef925 100644
--- a/index.html
+++ b/index.html
@@ -38,7 +38,6 @@
               <select
                 name="domain"
                 id="domain"
-                id="domain"
                 v-if="domains.length > 1"
               >
                 <option v-for="domain in domains" :value="domain">