diff --git a/workflow/main.nf b/workflow/main.nf
index 2496d93ca2c9c82bcf996d0c854ac859c786ce18..9b45adb8235ef8964ac0d00fc86fd47b12d5cf0a 100644
--- a/workflow/main.nf
+++ b/workflow/main.nf
@@ -34,7 +34,7 @@ if (params.astrocyte) {
   referenceLocation = "/project/shared/bicf_workflow_ref"
   params.bwaIndex = "$referenceLocation/$params.genome"
   params.chromSizes = "$referenceLocation/$params.genome/genomefile.txt"
-  params.fasta = "$referenceLocation/$params.genome/genome.fa.txt"
+  params.fasta = "$referenceLocation/$params.genome/genome.fa"
   if (params.genome == 'GRCh37' || params.genome == 'GRCh38') {
     params.genomeSize = 'hs'
   } else if (params.genome == 'GRCm38') {