diff --git a/src/_ssh-copy-id b/src/_ssh-copy-id
index 1130b25..9df02da 100644
--- a/src/_ssh-copy-id
+++ b/src/_ssh-copy-id
@@ -44,6 +44,10 @@
 
 _arguments -A "-*" \
   '-i+[use identity file]:SSH identity file:_files' \
+  '-n+[do a dry-run]' \
+  '-h+[print usage summary]' \
+  '-p+[specifiy custom port]' \
+  '-o+[additional ssh option]' \
   '1: :_user_at_host'
 
 # Local Variables: