diff --git a/backend/windmill-worker/loader_builder.bun.ts b/backend/windmill-worker/loader_builder.bun.ts
index 4d7a2b48bf..eca8c9ef81 100644
--- a/backend/windmill-worker/loader_builder.bun.ts
+++ b/backend/windmill-worker/loader_builder.bun.ts
@@ -7,6 +7,8 @@ const bo = await Bun.build({
 
 const fs = require("fs/promises");
 
+const captureVersion = /(^\@?[^\@]+)(?:\@(.+))?/;
+
 if (!bo.success) {
   bo.logs.forEach((l) => console.log(l));
   process.exit(1);
@@ -17,7 +19,7 @@ if (!bo.success) {
   const { intersect } = require("semver-intersect");
   const dependencies: Record<string, string[]> = {};
   for (const i of imports) {
-    let [name, version] = i.path.split("@");
+    let [_, name, version] = i.path.match(captureVersion) ?? [];
     if (version == undefined) {
       if (dependencies[name] == undefined) {
         dependencies[name] = [];