diff --git a/tests/config/nextflow.config b/tests/config/nextflow.config
index babc8735..6093aa88 100644
--- a/tests/config/nextflow.config
+++ b/tests/config/nextflow.config
@@ -11,6 +11,7 @@ if("$PROFILE" == "docker") {
 } else if ("$PROFILE" == "singularity") {
     singularity.enabled = true
     singularity.autoMounts = true
+    singularity.runOptions = '-B /tmp/'
 } else if ("$PROFILE" == "conda") {
     params.enable_conda = true
 }