diff --git a/.github/workflows/R-CMD-check-full-manual.yaml b/.github/workflows/R-CMD-check-full-manual.yaml
index 629209a4..9873caf3 100644
--- a/.github/workflows/R-CMD-check-full-manual.yaml
+++ b/.github/workflows/R-CMD-check-full-manual.yaml
@@ -57,4 +57,4 @@ jobs:
       - uses: r-lib/actions/check-r-package@v2
         with:
           upload-snapshots: true
-		      build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")
+          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")