diff --git a/biopet/biopet.wdl b/biopet/biopet.wdl
index 8e9e36df883209d3361e51ad5fa93324c82e73bf..d88f0610723528fbc0ad1d1c9648147eca226a3f 100644
--- a/biopet/biopet.wdl
+++ b/biopet/biopet.wdl
@@ -231,7 +231,7 @@ task ReorderGlobbedScatters {
 task ScatterRegions {
     input {
         File referenceFasta
-        File referenceFastaFai
+        File referenceFastaDict
         Int? scatterSize
         File? regions
         Boolean notSplitContigs = false