diff --git a/.github/workflows/test-ghcup.yaml b/.github/workflows/test-ghcup.yaml
index 64c3427..0a4bfba 100644
--- a/.github/workflows/test-ghcup.yaml
+++ b/.github/workflows/test-ghcup.yaml
@@ -62,6 +62,9 @@ jobs:
     runs-on: ubuntu-20.04
     container:
       image: debian:12
+    env:
+      DEBIAN_FRONTEND: noninteractive
+      TZ: Asia/Singapore
     steps:
       - run: |
           apt-get update
@@ -87,7 +90,6 @@ jobs:
       - run: which cabal
       - run: cabal --version
 
-
   vanilla-channel:
     strategy:
       matrix:
@@ -163,3 +165,21 @@ jobs:
         run: |
           cat $(stack path --stack-root)/hooks/ghc-install.sh
         shell: bash
+
+  make:
+    runs-on: ubuntu-latest
+    container:
+      image: rockylinux:9
+    steps:
+      - run: |
+          dnf install -y git nodejs make
+      - uses: actions/checkout@v4
+      - run: |
+          set -eux
+          pushd ghcup
+          npx bun install
+          BUN="npx bun" make
+          popd
+          git config --global --add safe.directory $PWD
+          git status
+          git diff --exit-code
diff --git a/ghcup/Makefile b/ghcup/Makefile
index ab88831..d42e84d 100644
--- a/ghcup/Makefile
+++ b/ghcup/Makefile
@@ -1,3 +1,6 @@
 .PHONY: dist/index.js
+
+BUN ?= bun
+
 dist/index.js:
-	bun build --target=node --minify --outfile=$@ src/index.ts
+	$(BUN) build --target=node --minify --outfile=$@ src/index.ts