diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 73493b3..34b78c2 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -54,4 +54,5 @@ jobs:
 
       - uses: r-lib/actions/check-r-package@v2
         with:
+          error-on: '"error"'
           upload-snapshots: true
diff --git a/R/utils.R b/R/utils.R
index c9ea31c..5662060 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -18,6 +18,7 @@ prpPvw <- function(crrTbl = NULL, dtaFrm = NULL, colFst = c(), nonLtd = FALSE) {
     if (!useIdx) crrTbl$getColumn(1)$setTitle(colNme[1])
     for (i in seqCol) crrTbl$addColumn(name = colNme[i], title = colNme[i])
     for (i in seqRow) crrTbl$addRow(rowKey = i, values = valRow)
+    return(invisible(NULL))
 }
 
 rstPvw <- function(crrTbl = NULL) {