diff --git a/scripts/dns-update.nse b/scripts/dns-update.nse
index 9a775f70e..dc267b2be 100644
--- a/scripts/dns-update.nse
+++ b/scripts/dns-update.nse
@@ -1,5 +1,5 @@
 description = [[
-Attempts to perform a dynamic DNS update without authentication
+Attempts to perform a dynamic DNS update without authentication.
 ]]
 
 author = "Patrik Karlsson"