diff --git a/tests/vnc_playback.html b/tests/vnc_playback.html
index b5faf93c..70801170 100644
--- a/tests/vnc_playback.html
+++ b/tests/vnc_playback.html
@@ -61,7 +61,7 @@
             // Load supporting scripts
             Util.load_scripts(["base64.js", "websock.js", "des.js",
                             "keysymdef.js", "keyboard.js", "input.js", "display.js",
-                            "jsunzip.js", "rfb.js", "playback.js", fname]);
+                            "jsunzip.js", "rfb.js", "keysym.js", "playback.js", fname]);
 
         } else {
             message("Must specify data=FOO in query string.");