diff --git a/workflow/rna-seq.nf b/workflow/rna-seq.nf
index b769cd91ea612d43e62391f0837fa9f893f12362..a96eaf6d2118942d52598ae79445883361c4d1b1 100755
--- a/workflow/rna-seq.nf
+++ b/workflow/rna-seq.nf
@@ -197,7 +197,7 @@ if (spike == 'yes') {
     reference = Channel.fromPath ("/project/BICF/BICF_Core/shared/gudmap/references/GRCm38.P6/hisat2")
   }
 }
-reference.subscribe { println "$it }
+reference.subscribe { println "$it" }
 
 /*
  * trimData: trims any adapter or non-host sequences from the data