diff --git a/fasta_sampler.nf b/fasta_sampler.nf
new file mode 100644
index 0000000000000000000000000000000000000000..7c339b979b0e66adbc0e68afb5698e735b1ee8bc
--- /dev/null
+++ b/fasta_sampler.nf
@@ -0,0 +1,12 @@
+process sample_fasta {
+	input:
+file fasta from fasta_file
+	
+	output:
+file "sample.fasta" into fasta_sample
+
+	script:
+"""
+head ${fasta} > sample.fasta
+"""
+}
\ No newline at end of file