diff --git a/workflow/config/samples.csv b/workflow/config/samples.csv
new file mode 100644
index 0000000..fb85c45
--- /dev/null
+++ b/workflow/config/samples.csv
@@ -0,0 +1,7 @@
+sample,	condition, condition2, batch_effect
+m18_bc01.fq.gz,	male,condition2, batch1
+m18_bc02.fq.gz,	male, condition2, batch1
+m18_bc03.fq.gz, female, condition2, batch1
+m18_bc04.fq.gz, female, condition2, batch1
+m18_bc05.fq.gz, female, condition2, batch1
+m18_bc06.fq.gz, male, condition2, batch1
diff --git a/workflow/config/samples.tsv b/workflow/config/samples.tsv
deleted file mode 100644
index 001c0ba..0000000
--- a/workflow/config/samples.tsv
+++ /dev/null
@@ -1,7 +0,0 @@
-sample,	condition,	batch_effect
-m18_bc01.fq.gz,	male,	batch1
-m18_bc02.fq.gz,	male,   batch1
-m18_bc03.fq.gz, female,	batch1
-m18_bc04.fq.gz, female,  batch1
-m18_bc05.fq.gz, female,  batch1
-m18_bc06.fq.gz, male,	batch1