diff --git a/build_docker.sh b/build_docker.sh
index 011ca40..f3c20c0 100755
--- a/build_docker.sh
+++ b/build_docker.sh
@@ -10,5 +10,8 @@ mkdir image
 cp -r build/web image
 cp player-server/target/release/player-server image
 
+echo Patch built files
+sed -i 's/<\/head>/<script>window.flutterConfiguration = {canvasKitBaseUrl: "\/canvaskit\/"}<\/script><\/head>/g' image/web/index.html
+
 echo Build Docker image
 docker build image -f Dockerfile -t pierre42100/new_web_music_player