diff --git a/lib/NGCP/Panel/Utils/Auth.pm b/lib/NGCP/Panel/Utils/Auth.pm
index 877bb9d6fc..ade9042411 100644
--- a/lib/NGCP/Panel/Utils/Auth.pm
+++ b/lib/NGCP/Panel/Utils/Auth.pm
@@ -44,7 +44,7 @@ sub perform_auth {
     my ($c, $user, $pass, $realm, $bcrypt_realm) = @_;
     my $res;
 
-    if ($pass =~ /[^[:ascii:]]/) {
+    if ($pass && $pass =~ /[^[:ascii:]]/) {
         return $res;
     }
 
@@ -108,7 +108,7 @@ sub perform_subscriber_auth {
     my ($c, $user, $domain, $pass) = @_;
     my $res;
 
-    if ($pass =~ /[^[:ascii:]]/) {
+    if ($pass && $pass =~ /[^[:ascii:]]/) {
         return $res;
     }