diff --git a/plugins/system/zones_mem b/plugins/system/zones_mem
index 1e6c62aa..d32566d4 100755
--- a/plugins/system/zones_mem
+++ b/plugins/system/zones_mem
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+# This plugin shows Solaris zone memory usage.
+
 #%# family=auto
 #%# capabilities=autoconf