diff --git a/.travis.yml b/.travis.yml
index e78c4b9b8b4f..7db62bc74bd4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,7 @@ os:
 dist: xenial
 
 # Run in PRs and for bors, but not on master.
-if: branch = auto OR branch = try OR type = pull_request
+if: branch = auto OR branch = try OR type = pull_request OR type = cron
 
 env:
   global: