diff --git a/perl-xCAT/xCAT/Utils.pm b/perl-xCAT/xCAT/Utils.pm
index c1b1725cc..d37ebdb19 100644
--- a/perl-xCAT/xCAT/Utils.pm
+++ b/perl-xCAT/xCAT/Utils.pm
@@ -21,12 +21,12 @@ use File::Path;
 use Socket;
 use strict;
 use Symbol;
-my $sha1support = eval {
-	require Digest::SHA1;
-	1;
-};
+my $sha1support;
 if ( -f "/etc/debian_version" ){
-    $sha1support = eval {require Digest::SHA; 1;}
+    $sha1support = eval {require Digest::SHA; 1;};
+}
+else {
+    $sha1support = eval { require Digest::SHA1; 1;};
 }
 use IPC::Open3;
 use IO::Select;