diff --git a/conf/modules.config b/conf/modules.config
index 1e2058a..b1d7b87 100644
--- a/conf/modules.config
+++ b/conf/modules.config
@@ -41,7 +41,7 @@ process {
     }
 
     withName: FALCO {
-         ext.prefix = { "${meta.id}_${meta.run_accession}_raw" }
+        ext.prefix = { "${meta.id}_${meta.run_accession}_raw" }
         publishDir = [
             path: { "${params.outdir}/falco/raw" },
             mode: params.publish_dir_mode,