diff --git a/pages/common/sox.md b/pages/common/sox.md
index 74b062362..1c9ede64e 100644
--- a/pages/common/sox.md
+++ b/pages/common/sox.md
@@ -2,6 +2,7 @@
 
 > Sound eXchange: play, record and convert audio files.
 > Audio formats are identified by the extension.
+> Homepage: <http://sox.sourceforge.net>.
 
 - Merge two audio files into one: