diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index 3f6e543..6deb81f 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -3,6 +3,9 @@ on:
   push:
     branches:
       - master
+  pull_request:
+    branches:
+      - master
 jobs:
   docker-build:
     runs-on: ubuntu-latest