diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index bef27592a..2772af087 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -1,6 +1,6 @@
 name: Generate reference documentation
 on:
-  workflow-dispatch:
+  workflow_dispatch:
     inputs:
       relspec:
         description: 'Release Specification'