diff --git a/kasmweb/app/ui.js b/kasmweb/app/ui.js
index 6bb5b29..0b1102c 100644
--- a/kasmweb/app/ui.js
+++ b/kasmweb/app/ui.js
@@ -1878,7 +1878,7 @@ const UI = {
     },
 
     sendTab() {
-        UI.rfb.sendKey(KeyTable.XK_Tab);
+        UI.rfb.sendKey(KeyTable.XK_Tab, "Tab");
     },
 
     toggleCtrl() {