diff --git a/workflow/main.nf b/workflow/main.nf
index d727bb876521fc67bcd8c504c94f8b8af9308a8d..6c1f16fcffe65686cc0216483cd3ac9902d97e14 100755
--- a/workflow/main.nf
+++ b/workflow/main.nf
@@ -330,7 +330,7 @@ process count400 {
 
   input:
     set sample, file("${sample}_S?_L001_R1_001.fastq.gz"), file("${sample}_S?_L001_R2_001.fastq.gz"), file(script) from samples400
-    file ref from refLocation310.first()
+    file ref from refLocation400.first()
     expectCells400
     forceCells400
     chemistryParam400