diff --git a/master.html b/master.html
index fa10bfef..368dcdd6 100644
--- a/master.html
+++ b/master.html
@@ -97,6 +97,7 @@ <h1>
 <span>master</span>
 <select style="display: none;">
 <option selected value="master.html">master</option>
+<option selected value="master.html">master</option>
 <option value="v3.html">v3</option>
 <option value="v2.html">v2</option>
 <option value="v1.html">v1</option>
diff --git a/v1.html b/v1.html
index cfbe7dbf..32e3005c 100644
--- a/v1.html
+++ b/v1.html
@@ -97,6 +97,7 @@ <h1>
 <span>v1</span>
 <select style="display: none;">
 <option value="master.html">master</option>
+<option value="master.html">master</option>
 <option value="v3.html">v3</option>
 <option value="v2.html">v2</option>
 <option selected value="v1.html">v1</option>
diff --git a/v2.html b/v2.html
index cfc30b0b..1f6e2851 100644
--- a/v2.html
+++ b/v2.html
@@ -97,6 +97,7 @@ <h1>
 <span>v2</span>
 <select style="display: none;">
 <option value="master.html">master</option>
+<option value="master.html">master</option>
 <option value="v3.html">v3</option>
 <option selected value="v2.html">v2</option>
 <option value="v1.html">v1</option>
diff --git a/v3.html b/v3.html
index fad3e625..cb2c6022 100644
--- a/v3.html
+++ b/v3.html
@@ -97,6 +97,7 @@ <h1>
 <span>v3</span>
 <select style="display: none;">
 <option value="master.html">master</option>
+<option value="master.html">master</option>
 <option selected value="v3.html">v3</option>
 <option value="v2.html">v2</option>
 <option value="v1.html">v1</option>