diff --git a/index.html b/index.html
index fb8d1bd..221ce87 100755
--- a/index.html
+++ b/index.html
@@ -38,7 +38,7 @@
             <div class="input-group-prepend">
                 <span class="input-group-text" id="robot-label">Robot ID</span>
             </div>
-            <input type="text" class="form-control" id="robot-id" placeholder="xxxxxx" />
+            <input type="text" class="form-control" id="robot-id" placeholder="xxxxxxxx" />
         </div>
         <div class="btn-group btn-group-robot" role="group" aria-label="robots">
             <a href="#" class="btn btn-lg btn-robot-go">GO!</a>