diff --git a/src/nf_modules/kallisto/indexing.config b/src/nf_modules/kallisto/indexing.config
index b39d4a0b99ba4f99e82e50995ba10946bc2f32d4..e0fef67aad93df45273f0be045fecc8a53f40ce1 100644
--- a/src/nf_modules/kallisto/indexing.config
+++ b/src/nf_modules/kallisto/indexing.config
@@ -54,6 +54,7 @@ profiles {
     singularity.autoMounts = true
     process{
       withName: index_fasta {
+        beforeScript = "export SINGULARITY_BIND="/sps,/scratch:/var/singularity/mnt/""
         container = "/sps/lbmc/common/singularity/kallisto:0.44.0.img"
         scratch = true
         stageInMode = "copy"