diff --git a/src/RNASeq.nf b/src/RNASeq.nf
index e70444436f9322ac91bf22becdfdd9c33a04eb11..89f83b18d63d50d013a58073a1b3de7376b6cd7d 100644
--- a/src/RNASeq.nf
+++ b/src/RNASeq.nf
@@ -43,7 +43,7 @@ process trimming {
   publishDir "results/fastq/trimming/", mode: 'copy'
 
   input:
-  set pair_id, file(reads) from fastq_files_cut
+  file reads from fastq_files_cut
 
   output:
   file "*_trim_R{1,2}.fastq.gz" into fastq_files_trim