diff --git a/xCAT-server/lib/xcat/plugins/ipmi.pm b/xCAT-server/lib/xcat/plugins/ipmi.pm
index 575bcafaa..4b8328b1b 100644
--- a/xCAT-server/lib/xcat/plugins/ipmi.pm
+++ b/xCAT-server/lib/xcat/plugins/ipmi.pm
@@ -73,12 +73,6 @@ use IO::Socket;
 use IO::Select;
 use Class::Struct;
 use Digest::MD5 qw(md5);
-if ( -f "/etc/debian_verion" ){
-    use Digest::SHA qw(sha1);
-}
-else{
-    use Digest::SHA1 qw(sha1);
-}
 use POSIX qw(WNOHANG mkfifo strftime);
 use Fcntl qw(:flock);