diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 165b359..eedfb5b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -88,6 +88,11 @@ jobs:
           Copy-Item apps/desktop/launcher/tronbrowser "$stage/tronbrowser"
           Copy-Item apps/desktop/launcher/tronbrowser.cmd "$stage/tronbrowser.cmd"
           Copy-Item -Recurse apps/desktop/extensions/ai-sidebar "$stage/extensions/ai-sidebar"
+          # Same wholesale-copy problem build-release.sh has: the vitest files
+          # next to the extension sources ride along into the zip. Chrome never
+          # loads them, and moshpit-drift.test.js imports a devDependency that
+          # cannot resolve from an unbundled extension. Drop them.
+          Get-ChildItem "$stage/extensions/ai-sidebar" -Filter *.test.js -Recurse | Remove-Item -Force
           Copy-Item LICENSE "$stage/LICENSE"
           "v${{ needs.create-release.outputs.version }}" | Out-File -Encoding ascii "$stage/VERSION"
           New-Item -ItemType Directory -Force -Path dist | Out-Null