diff --git a/backend/windmill-worker/nsjail/run.bun.config.proto b/backend/windmill-worker/nsjail/run.bun.config.proto
index 20b0893b4e..3595934878 100644
--- a/backend/windmill-worker/nsjail/run.bun.config.proto
+++ b/backend/windmill-worker/nsjail/run.bun.config.proto
@@ -86,8 +86,8 @@ mount {
 
 
 mount {
-    src: "{JOB_DIR}/loader.bun.ts"
-    dst: "/tmp/{LANG}/loader.bun.ts"
+    src: "{JOB_DIR}/loader.bun.js"
+    dst: "/tmp/{LANG}/loader.bun.js"
     is_bind: true
     mandatory: false
 }