diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2a674a8cb58ff4c364b472641b538630117a5ffa..09d3fddde50e987036d588455cca3a177779059c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -36,8 +36,8 @@           - <YOUR_CACHIX_NAME>
         nixPath:
           - nixpkgs=channel:nixos-unstable
           - nixpkgs=channel:nixpkgs-unstable
-  pull_request:
       - master
+  pull_request:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository