diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 90d4a52..fe832a3 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -35,7 +35,7 @@ jobs:
 
       - uses: r-lib/actions/setup-r@v2
         with:
-          r-version: ${{ matrix.config.r }}
+	  r-version: ${{ matrix.config.r }}
 	  http-user-agent: ${{ matrix.config.http-user-agent }}
 	  use-public-rspm: true
           extra-repositories: "https://inla.r-inla-download.org/R/testing"