diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index 99b539b76e47..e7d8e927ac9d 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -5,6 +5,7 @@ concurrency:
   cancel-in-progress: false
 
 on:
+  workflow_dispatch:
   schedule:
     # runs once a week
     - cron: '0 0 * * 0'