diff --git a/src/RNAseq_XGR.nf b/src/RNAseq_XGR.nf
index 87be259d315c3507420ef001e4e68531f8434097..8a34b14d7fa274986d36b35e390bc203a21c1c5d 100644
--- a/src/RNAseq_XGR.nf
+++ b/src/RNAseq_XGR.nf
@@ -59,7 +59,7 @@ if (params.help || params.h) {
 */
  
 /* Arguments */
-params.fastq = "$params.project/*{1,2}.fastq*"
+params.fastq = "${params.project}/*{1,2}.fastq*"
 params.gtf = ""
 params.fasta = ""
 params.idx = ""