diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 86db8c30..c4d1b988 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -51,11 +51,11 @@ jobs:
       # server in mrc-4515, disabling on mac now.
       - name: setup server
         if: runner.os != 'macOS'
-        run: |
-          cargo install \
-            --git https://github.com/mrc-ide/outpack_server \
-            --features git2/vendored-libgit2 \
-            --branch main \
+        run: >
+          cargo install
+            --git https://github.com/mrc-ide/outpack_server
+            --features git2/vendored-libgit2
+            --branch main
             --locked
 
       - uses: r-lib/actions/setup-r-dependencies@v2