diff --git a/muxplex/frontend/app.js b/muxplex/frontend/app.js
index 9ba5e82..281d75a 100644
--- a/muxplex/frontend/app.js
+++ b/muxplex/frontend/app.js
@@ -1026,6 +1026,9 @@ function toggleSidebar() {
 
   var collapseBtn = $('sidebar-collapse-btn');
   if (collapseBtn) collapseBtn.innerHTML = isOpen ? _icons.chevronLeft : _icons.chevronRight;
+
+  // Show/hide the session pill based on sidebar state — pill is redundant when sidebar is open
+  updateSessionPill(_currentSessions || []);
 }
 
 /**
@@ -1047,6 +1050,7 @@ function bindSidebarClickAway() {
     sidebar.classList.add('sidebar--collapsed');
     if (_serverSettings) _serverSettings.sidebarOpen = false;
     patchServerSetting('sidebarOpen', false);
+    updateSessionPill(_currentSessions || []);
   });
 }
 
@@ -3606,7 +3610,10 @@ function updateSessionPill(sessions) {
   }
   var pillLabel = _viewingSession || '';
   pill.label = pillLabel;
-  pill.visible = true;
+  // Hide the pill when the sidebar is open — it's redundant as a session switcher
+  var sidebar = $('session-sidebar');
+  var sidebarOpen = sidebar && !sidebar.classList.contains('sidebar--collapsed');
+  pill.visible = !sidebarOpen;
 
   var viewingKey = _viewingRemoteId ? (_viewingRemoteId + ':' + _viewingSession) : _viewingSession;
   var othersWithBell = sessions.filter(function(s) {