diff --git a/modules/keyboardshortcut/keyboardshortcut.js b/modules/keyboardshortcut/keyboardshortcut.js
index 9acd2d504..799748584 100644
--- a/modules/keyboardshortcut/keyboardshortcut.js
+++ b/modules/keyboardshortcut/keyboardshortcut.js
@@ -17,10 +17,12 @@ function initGlobalShortcuts() {
         APP.UI.toggleKeyboardShortcutsPanel();
     }, "keyboardShortcuts.toggleShortcuts");
 
-    KeyboardShortcut.registerShortcut("T", null, function() {
+    // register SPACE shortcut in two steps to insure visibility of help message
+    KeyboardShortcut.registerShortcut(" ", null, function() {
         JitsiMeetJS.analytics.sendEvent("shortcut.talk.clicked");
         APP.conference.muteAudio(true);
-    }, "keyboardShortcuts.pushToTalk");
+    });
+    KeyboardShortcut._addShortcutToHelp("SPACE","keyboardShortcuts.pushToTalk");
 
     /**
      * FIXME: Currently focus keys are directly implemented below in onkeyup.
@@ -68,7 +70,7 @@ var KeyboardShortcut = {
                 $(":focus").is("input[type=password]") ||
                 $(":focus").is("textarea"))) {
                 var key = self._getKeyboardKey(e).toUpperCase();
-                if(key === "T") {
+                if(key === " ") {
                     if(APP.conference.isLocalAudioMuted())
                         APP.conference.muteAudio(false);
                 }