diff --git a/pages/common/samtools.md b/pages/common/samtools.md
index 5c229cd518..51bce01f18 100644
--- a/pages/common/samtools.md
+++ b/pages/common/samtools.md
@@ -2,6 +2,7 @@
 
 > Tools for handling high-throughput sequencing (genomics) data.
 > Used for reading/writing/editing/indexing/viewing of data in SAM/BAM/CRAM format.
+> More information: <https://www.htslib.org>.
 
 - Convert a SAM input file to BAM stream and save to file: