diff --git a/lib/main.js b/lib/main.js
index 183fa64..6990f4c 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -32,7 +32,7 @@ async function run() {
     console.log(`Upload URL: ${url}`)
 
     const { data: assets } = await octokit.repos.listAssetsForRelease({owner, repo, release_id})
-    assets.forEach(({ id: asset_id, name: asset_name }) => {
+    assets.filter(asset => asset).forEach(({ id: asset_id, name: asset_name }) => {
         if (asset_name == name) {
             octokit.repos.deleteReleaseAsset({owner, repo, asset_id})
         }