diff --git a/harper-ls/dictionary.txt b/harper-ls/dictionary.txt
index 0ed995b..92d9d07 100644
--- a/harper-ls/dictionary.txt
+++ b/harper-ls/dictionary.txt
@@ -204,6 +204,7 @@ buildx
 byebug
 cadvisor
 casecmp
+cgroups
 chardata
 checkin
 chgrp