diff --git a/definitions/default/hosts/all/etc/sudoers.d/allow-composition-sync-send b/definitions/default/hosts/all/etc/sudoers.d/allow-composition-sync-send
index fbbb554..23b2541 100644
--- a/definitions/default/hosts/all/etc/sudoers.d/allow-composition-sync-send
+++ b/definitions/default/hosts/all/etc/sudoers.d/allow-composition-sync-send
@@ -5,6 +5,6 @@ Cmnd_Alias C_COMPOSITION_SYNC = \
     /cis/script/host/zfs/composition-sync/sync-send.sh \
         ^[a-zA-Z][a-zA-Z0-9_-]* \
          [a-zA-Z][a-zA-Z0-9.-]* \
-        (@[a-zA-Z0-9._:-]*)? \
+        @[a-zA-Z0-9._:-]* \
         ([a-zA-Z0-9][a-zA-Z0-9._:-]*)?$
 composition-sync ALL = (root) NOPASSWD: C_COMPOSITION_SYNC