diff --git a/.github/workflows/pxt-buildpr.yml b/.github/workflows/pxt-buildpr.yml
index 79354f9f..b6ea4304 100644
--- a/.github/workflows/pxt-buildpr.yml
+++ b/.github/workflows/pxt-buildpr.yml
@@ -1,6 +1,6 @@
 name: pxt-buildpr
 
-on: [pull-request]
+on: [pullrequest]
 
 jobs:
   build: