diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 1e2409b9..33eb76fe 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -6,6 +6,9 @@ on:
     types:
       - completed
 
+  # Allow triggering manually.
+  workflow_dispatch:
+
 jobs:
   coverage:
     name: coverage