diff --git a/seqnado/workflow/config/deseq2.qmd.jinja b/seqnado/workflow/config/deseq2.qmd.jinja
index e1f8d301..c11a887e 100755
--- a/seqnado/workflow/config/deseq2.qmd.jinja
+++ b/seqnado/workflow/config/deseq2.qmd.jinja
@@ -116,7 +116,7 @@ if (has_spikein) {
   
   # Output size factors
   size_factors <- colData(dds)[, "sizeFactor"]
-  names(size_factors) <- colData(dds)[, "sample"]
+  names(size_factors) <- colData(dds)[, "sample_name"]
   sf <- toJSON(size_factors)
   writeLines(sf, params$size_factors_out)