diff --git a/.github/workflows/arm64-checks.yml b/.github/workflows/arm64-checks.yml
index c7b7816..df0f698 100644
--- a/.github/workflows/arm64-checks.yml
+++ b/.github/workflows/arm64-checks.yml
@@ -47,7 +47,7 @@ jobs:
             --env R_LIBS_USER=/R-lib
             --env PKG=${{ env.PKG }}
           run: |
-            echo "options(Ncpus=4L, timeout = 300, CRAN = 'https://packagemanager.posit.co/cran/latest'))" >> ~/.Rprofile
+            echo "options(Ncpus=4L, timeout = 300, CRAN = 'https://packagemanager.posit.co/cran/latest')" >> ~/.Rprofile
             ## remotes comes pre-installed in the Docker images
             Rscript -e "BiocManager::install('${PKG}', dependencies = TRUE)"