diff --git a/workflow/nextflow.config b/workflow/nextflow.config
index e28fe79b56e6cb41ce8402ef024cac7f2ebfeb42..8ee8989e7571a671a4cd416aa92dd217f5e7f15b 100644
--- a/workflow/nextflow.config
+++ b/workflow/nextflow.config
@@ -98,18 +98,18 @@ process {
 
 trace {
   enabled = true
-  file = '${params.outDir}/${params.repRID}_trace.txt'
+  file = "${params.outDir}/${params.repRID}_trace.txt"
   fields = 'task_id,native_id,process,name,status,exit,submit,start,complete,duration,realtime,%cpu,%mem,rss'
 }
 
 timeline {
   enabled = true
-  file = '${params.outDir}/${param.repRID}_timeline.html'
+  file = "${params.outDir}/${params.repRID}_timeline.html"
 }
 
 report {
   enabled = true
-  file = '${params.outDir}/${param.repRID}_report.html'
+  file = "${params.outDir}/${params.repRID}_report.html"
 }
 
 tower {