diff --git a/javascript/JZZ.js b/javascript/JZZ.js
index 4164656..3af5640 100644
--- a/javascript/JZZ.js
+++ b/javascript/JZZ.js
@@ -2353,7 +2353,7 @@
     if (this.isMidiSoft()) {
       ss = _toLine(this.getText());
       if (ss) ss = ' ' + ss;
-      return s + ' -- [' + __hex(this[5]) + ']' + ss;
+      return s + ' -- [K:' + __hex(this[5]) + ']' + ss;
     }
     var c = this[0] >> 4;
     ss = {8: 'Note Off', 10: 'Aftertouch', 12: 'Program Change', 13: 'Channel Aftertouch', 14: 'Pitch Wheel'}[c];
diff --git a/package.json b/package.json
index cb5161c..a657526 100644
--- a/package.json
+++ b/package.json
@@ -17,11 +17,11 @@
   ],
   "author": "jazz-soft (https://jazz-soft.net/)",
   "dependencies": {
-    "@types/webmidi": "^2.0.4",
+    "@types/webmidi": "^2.0.5",
     "jazz-midi": "^1.7.5"
   },
   "devDependencies": {
-    "eslint": "^7.29.0",
+    "eslint": "^7.30.0",
     "grunt": "^1.4.1",
     "grunt-contrib-jshint": "^3.0.0",
     "grunt-contrib-uglify": "^5.0.1",
diff --git a/test/common.js b/test/common.js
index 807441b..2809418 100644
--- a/test/common.js
+++ b/test/common.js
@@ -604,8 +604,8 @@ describe('MIDI messages', function() {
     assert.equal(JZZ.MIDI.sxGS([0x40, 0x01, 0x33, 0x0c]).toString(), 'f0 41 7f 42 12 40 01 33 0c 00 f7');
   });
   it('sxMidiSoft', function() {
-    assert.equal(JZZ.MIDI.sxMidiSoft(0).toString(), 'f0 00 20 24 00 00 f7 -- [00]');
-    assert.equal(JZZ.MIDI.sxMidiSoft(4, 'MidiSoft').toString(), 'f0 00 20 24 00 04 4d 69 64 69 53 6f 66 74 f7 -- [04] MidiSoft');
+    assert.equal(JZZ.MIDI.sxMidiSoft(0).toString(), 'f0 00 20 24 00 00 f7 -- [K:00]');
+    assert.equal(JZZ.MIDI.sxMidiSoft(4, 'MidiSoft').toString(), 'f0 00 20 24 00 04 4d 69 64 69 53 6f 66 74 f7 -- [K:04] MidiSoft');
   });
   it('reset', function() {
     assert.equal(JZZ.MIDI.reset().toString(), 'ff -- Reset');