diff --git a/docs/sbbsunix.txt b/docs/sbbsunix.txt
index 4ce9b307eb7f648bb874a26fe40e14b8ab7a58b3..f00fe8cac3739a0cd12e16020410f7c924e95b4f 100644
--- a/docs/sbbsunix.txt
+++ b/docs/sbbsunix.txt
@@ -327,6 +327,12 @@ Default Configuration (SCFG) Screen-shots
 3: Working String        Testing ZIP Integrity...
 4: Access Requirements   UNIX
 
+[Testable File Type]
+1: File Extension        zip
+2: Command Line          zip -z %f < %zzipmsg.txt
+3: Working String        Adding ZIP Comment...
+4: Access Requirements   UNIX
+
 [Testable File Type]
 1: File Extension        tgz
 2: Command Line          tar -tzf %s