diff --git a/electron-builder.yml b/electron-builder.yml
index ad4873f..31900a2 100644
--- a/electron-builder.yml
+++ b/electron-builder.yml
@@ -6,6 +6,9 @@ directories:
 files:
   - dist/**
   - package.json
+  # Bundled so the packaged binary can be exercised in-place (FOLIO_SELF_TEST).
+  # It is inert during normal launches.
+  - tests/selftest-scenario.js
 linux:
   icon: build/icons
   category: Office
@@ -17,4 +20,4 @@ linux:
       StartupWMClass: folio
   target:
     - AppImage
-    - deb
\ No newline at end of file
+    - deb