diff --git a/.github/workflows/nightly.yaml b/.github/workflows/nightly.yaml
index 03c47dc..b2dad8f 100644
--- a/.github/workflows/nightly.yaml
+++ b/.github/workflows/nightly.yaml
@@ -2,7 +2,7 @@ name: Nightly build
 
 on:
   schedule:
-    cron: '0 2 * * *'
+    - cron: '0 2 * * *'
 
 jobs:
   build: