diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b3b2c06..79de593 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches: [master]
   pull_request:
-    branches: [master]
+    branches: [master, lf]
 
 jobs:
   build_fortran: