diff --git a/src/bgzip/config.vsh.yaml b/src/bgzip/config.vsh.yaml
index 6a5e7f49..c37db43c 100644
--- a/src/bgzip/config.vsh.yaml
+++ b/src/bgzip/config.vsh.yaml
@@ -6,6 +6,8 @@ functionality:
     documentation: https://www.htslib.org/doc/bgzip.html
     repository: https://github.com/samtools/htslib
     licence: MIT
+    reference:
+      doi: 10.1093/gigascience/giab007
   requirements:
     commands: [ bgzip ]
   argument_groups: