diff --git a/.changelog/1155.txt b/.changelog/1155.txt
new file mode 100644
index 000000000..d2572b3df
--- /dev/null
+++ b/.changelog/1155.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+workers: correctly set `body` value for non-ES module uploads
+```
diff --git a/workers.go b/workers.go
index d5474bc03..b1b3ed7f5 100644
--- a/workers.go
+++ b/workers.go
@@ -214,10 +214,10 @@ func (api *API) UploadWorker(ctx context.Context, rc *ResourceContainer, params
 		return WorkerScriptResponse{}, ErrMissingAccountID
 	}
 
+	body := []byte(params.Script)
 	var (
 		contentType = "application/javascript"
 		err         error
-		body        []byte
 	)
 
 	if params.Module || len(params.Bindings) > 0 {