diff --git a/packages/node-loader/test/index.js b/packages/node-loader/test/index.js
index e160f0a30..9c68167e1 100644
--- a/packages/node-loader/test/index.js
+++ b/packages/node-loader/test/index.js
@@ -89,7 +89,7 @@ test('@mdx-js/node-loader', async function (t) {
         assert.equal(error.message, 'Boom')
         // Source maps are off.
         // The column should be 26, not 8.
-        assert(error.stack?.includes('/crash.mdx:2:8)'))
+        assert(error.stack?.includes('crash.mdx:2:8)'))
         return true
       }
     )