diff --git a/workflow/main.nf b/workflow/main.nf
index cbfef2ac439224a8103e1cc442587cfc6dc74382..551641f8e8c38db62a5a8a8b5105e6231c01fa4a 100644
--- a/workflow/main.nf
+++ b/workflow/main.nf
@@ -398,7 +398,7 @@ process crossReads {
 xcorDesign = xcorReads
               .map{ sampleId, seTagAlign, tagAlign, xcor, experimentId, replicate ->
               "${sampleId}\t${seTagAlign}\t${tagAlign}\t${xcor}\t${experimentId}\t${replicate}\n" }
-              .collectFile(name:'design_xcor.tsv', seed:"sample_id\ttag_align\txcor\texperiment_id\treplicate\n", storeDir:"${outDir}/design")
+              .collectFile(name:'design_xcor.tsv', seed:"sample_id\tseTagAlign\ttag_align\txcor\texperiment_id\treplicate\n", storeDir:"${outDir}/design")
 
 // Make Experiment design files to be read in for downstream analysis
 process defineExpDesignFiles {