diff --git a/dev-packages/size-limit-gh-action/index.mjs b/dev-packages/size-limit-gh-action/index.mjs
index 680d12237bf5..848802256853 100644
--- a/dev-packages/size-limit-gh-action/index.mjs
+++ b/dev-packages/size-limit-gh-action/index.mjs
@@ -191,6 +191,7 @@ async function run() {
 }
 
 async function runSizeLimitOnComparisonBranch() {
+  const __dirname = path.dirname(fileURLToPath(import.meta.url));
   const resultsFilePath = getResultsFilePath();
 
   const limit = new SizeLimitFormatter();