diff --git a/src/main/resources/fess_config.properties b/src/main/resources/fess_config.properties
index 6866ff5d6..ea09c6e8e 100644
--- a/src/main/resources/fess_config.properties
+++ b/src/main/resources/fess_config.properties
@@ -395,7 +395,7 @@ query.boost.content.lang=0.5
 
 # acl
 smb.role.from.file=true
-smb.available.sid.types=1,2
+smb.available.sid.types=1,2,4:2
 file.role.from.file=true
 ftp.role.from.file=true