diff --git a/html/vlan.html b/html/vlan.html
index 8bf5fc3..bd10c3c 100644
--- a/html/vlan.html
+++ b/html/vlan.html
@@ -23,7 +23,7 @@
       <div id="tPorts"><button type="button" style="transform: translateY(-100%);margin: 0 50px 0 0" onclick="utClicked(true);">Select all</button></div>
       <h2>Untagged Ports</h2>
       <div id="uPorts"><button type="button" style="transform: translateY(-100%); margin: 0 50px 0 0" onclick="utClicked(false);">Select all</button> </div>
-      <h2>PVID (default VLAN incoming traffic)</h2>
+      <h2>Default VLAN incoming (PVID)</h2>
       <div id="pPorts"><button type="button" style="transform: translateY(-100%); margin: 0 50px 0 0" onclick="pvClicked(true);">Select all</button> </div>
       <script src="/vlan.js"></script>
       <br/> <input style="width:40%;" class="action" id="vlan_sub" onclick="vlanSub();" type="button" value="Update / Create">
diff --git a/html/vlan.js b/html/vlan.js
index d37d626..d783534 100644
--- a/html/vlan.js
+++ b/html/vlan.js
@@ -39,6 +39,11 @@ function vlanForm() {
 
 function setC(t, p, c){
   document.getElementById(t+'port'+p).checked=c;
+  // When a tagged port is checked, automatically select the PVID port as well
+  const tportElem = document.getElementById('tport'+p);
+  if (tportElem && tportElem.checked) {
+    document.getElementById('pport'+p).checked=true;
+  }
 }
 
 function utClicked(t){