diff --git a/master.html b/master.html
index 7277b3ca..1070a790 100644
--- a/master.html
+++ b/master.html
@@ -106,7 +106,6 @@ Radicale
 <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 c3d935ce..987bbfec 100644
--- a/v1.html
+++ b/v1.html
@@ -106,7 +106,6 @@ Radicale
 <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 c70afd26..808f3ac7 100644
--- a/v2.html
+++ b/v2.html
@@ -106,7 +106,6 @@ Radicale
 <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 4fb8dba2..cd45bf2c 100644
--- a/v3.html
+++ b/v3.html
@@ -106,7 +106,6 @@ Radicale
 <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>