diff --git a/.github/workflows/spelling.yml b/.github/workflows/spelling.yml
index ad932692..37da03d6 100644
--- a/.github/workflows/spelling.yml
+++ b/.github/workflows/spelling.yml
@@ -1,6 +1,7 @@
 name: Spell checking
 on:
   push:
+  pull_request:
 
 jobs:
   build: