diff --git a/src/nf_modules/cutadapt/main.nf b/src/nf_modules/cutadapt/main.nf
index a4d08fe873bec6478a3807196376836178ba4391..3307dd40ad35382fc25fc3d639052e3cfda1aacf 100644
--- a/src/nf_modules/cutadapt/main.nf
+++ b/src/nf_modules/cutadapt/main.nf
@@ -19,18 +19,19 @@ process adaptor_removal {
   path "*_report.txt", emit: report
 
   script:
-if (reads instanceof List) {
+  if (reads instanceof List) {
   """
   cutadapt ${params.adaptor_removal} \
   -o ${pair_id}_cut_R1.fastq.gz -p ${pair_id}_cut_R2.fastq.gz \
   ${reads[0]} ${reads[1]} > ${pair_id}_report.txt
   """
-} else {
+  } else {
   """
   cutadapt ${params.adaptor_removal} \
   -o ${file_id}_cut.fastq.gz \
   ${reads} > ${file_id}_report.txt
   """
+  }
 }
 
 params.adaptor_removal_pairedend = "-a ${adapter_3_prim} -g ${adapter_5_prim} -A ${adapter_3_prim} -G ${adapter_5_prim}"