diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index c797ec5..26becfe 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -18,6 +18,9 @@ on:
   push:
     branches-ignore:
       - 'gh-pages'
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main ]
 
 ###############
 # Set the Job #