diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ae531077..6f44b3ac 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,6 +8,7 @@ on:
     branches: ["master"]
   # Allow rebuilds via API.
   repository_dispatch:
+    types: rebuild
 
 jobs:
   tests: