diff --git a/node-swc/src/spack.ts b/node-swc/src/spack.ts
index 3e3a3f5599b7..a7ef4fbcd135 100644
--- a/node-swc/src/spack.ts
+++ b/node-swc/src/spack.ts
@@ -8,7 +8,7 @@ export async function compileBundleOptions(config: BundleInput | string | undefi
     const f = config === undefined ? '.' : config;
 
     try {
-        const file = typeof f === 'string' ? f : path.resolve('spack.config.js');
+        const file = typeof f === 'string' ? (/^\.{0,2}\//.test(f) ? path.resolve(f) : f) : path.resolve('spack.config.js');
         let configFromFile: BundleInput = require(file);
         if ((configFromFile as any).default) {
             configFromFile = (configFromFile as any).default;