diff --git a/src/fasta_sampler.nf b/src/fasta_sampler.nf
index 434b9b27ab9b8eb79360281f26a5e2e11fdb4cc3..ab6f36a38b9e309a5f5b32383b87177471af50c7 100644
--- a/src/fasta_sampler.nf
+++ b/src/fasta_sampler.nf
@@ -1,4 +1,10 @@
+Channel
+  .fromPath( "data/tiny_dataset/fasta/*.fasta" )
+  .set { fasta_file }
+
 process sample_fasta {
+  publishDir "results/sampling/", mode: 'copy'
+
   input:
 file fasta from fasta_file