diff --git a/assets/trio_whole_exome_bcbio_template.yaml b/assets/trio_whole_exome_bcbio_template.yaml
index 1f872b19bf75fda892ce875ecc5c43d9ccc9b051..75d49bd28396c820e3c2e32470ca13f6d00c4914 100644
--- a/assets/trio_whole_exome_bcbio_template.yaml
+++ b/assets/trio_whole_exome_bcbio_template.yaml
@@ -23,4 +23,4 @@ upload:
   dir: ./results 
 resources:
   gatk-haplotype:
-      options: ["--active-probability-threshold", "0", "--interval-padding", 100]
+      options: '["--active-probability-threshold", "0", "--interval-padding", 100]'