diff --git a/Makefile b/Makefile
index 4a0425b..036139d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,9 @@
-.PHONY: all src css
+.PHONY: all depend css src
 
-all: css src
+all: depend css src
+
+depend:
+	patch -d mediaelement-plugins -p1 < patches/mediaelement-plugins/01-playlist.js.diff 
 
 css:
 	css/build.sh
diff --git a/package.json b/package.json
index 41d325d..6f5fb64 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "myplayer",
   "version": "1.0.0",
+  "type": "module",
   "description": "A Web-MP3-Player with Playlist Support",
   "main": "src/player.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "npx eslint src/player.js"
   },
   "repository": {
     "type": "git",
@@ -13,6 +14,7 @@
   "author": "tilt <tilt@linuxfoo.de>",
   "license": "MIT",
   "dependencies": {
+    "eslint": "^9.14.0",
     "minify": "^11.4.1"
   }
 }
diff --git a/patches/mediaelement-plugins/01-playlist.js.diff b/patches/mediaelement-plugins/01-playlist.js.diff
new file mode 100644
index 0000000..e0aeb61
--- /dev/null
+++ b/patches/mediaelement-plugins/01-playlist.js.diff
@@ -0,0 +1,13 @@
+diff --git a/src/playlist/playlist.js b/src/playlist/playlist.js
+index 82112fb..fcf4ade 100644
+--- a/src/playlist/playlist.js
++++ b/src/playlist/playlist.js
+@@ -81,7 +81,7 @@ Object.assign(MediaElementPlayer.prototype, {
+ 
+ 		player.endedCallback = () => {
+ 			if (player.currentPlaylistItem < player.listItems.length) {
+-				player.setSrc(player.playlist[++player.currentPlaylistItem]);
++				player.setSrc(player.playlist[++player.currentPlaylistItem].src);
+ 				player.load();
+ 				setTimeout(() => {
+ 					player.play();