diff --git a/src/generator.js b/src/generator.js
index b12d414..c04e783 100644
--- a/src/generator.js
+++ b/src/generator.js
@@ -1,6 +1,6 @@
 const words = require('./words')
 const digits = '0123456789'
-const symbols = '`~!@#$%^&*()_+-=,./<>?;:| '
+const symbols = '`~!@#$%^&*()_+-=,./<>?;:|[]{} '
 const defaultSymbol = '-'
 
 function getWordList (name) {
diff --git a/src/index.ejs b/src/index.ejs
index 6a0dfae..20e23f6 100644
--- a/src/index.ejs
+++ b/src/index.ejs
@@ -85,7 +85,8 @@
             <label for="use-symbol">Use separator symbol:</label>
             <select id="separator-symbol" name="separator">
               <% [...require('./generator').symbols].forEach(symbol => { %>
-                <option <% if (symbol === require('./generator').defaultSymbol) { %>selected<% } %>><%= _.escape(symbol) %></option>
+                <option<% if (symbol === require('./generator').defaultSymbol) { %> selected<% }
+                          else if (symbol === ' ') { %> value=" "<% } %>><%= _.escape(symbol) %></option>
               <% }) %>
             </select>
           </div>