diff --git a/.github/workflows/corpus.yml b/.github/workflows/corpus.yml
index ec617533..340070bc 100644
--- a/.github/workflows/corpus.yml
+++ b/.github/workflows/corpus.yml
@@ -1,5 +1,6 @@
 name: Nightly Test Corpus
 on:
+  workflow_dispatch:
   schedule:
     - cron: "0 0 * * *"
   # push: