diff --git a/cd.sh b/cd.sh
index eb39539..f37b71c 100644
--- a/cd.sh
+++ b/cd.sh
@@ -603,6 +603,7 @@ CD_ERROR_OS=1
 
 CD_OS_ALMA="alma"
 CD_OS_ALPINE="alpine"
+CD_OS_ARCH="arch"
 CD_OS_DEBIAN="debian"
 CD_OS_ROCKY="rocky"
 CD_OS_UBUNTU="ubuntu"