diff --git a/src/warden-server/lib/Warden.pm b/src/warden-server/lib/Warden.pm
index f717cea7435cd3e749935c4461684ce18e8b1235..544fcdf29204976a9ac1d583806b1f518bd4bf4b 100755
--- a/src/warden-server/lib/Warden.pm
+++ b/src/warden-server/lib/Warden.pm
@@ -222,19 +222,19 @@ sub saveNewEvent
       sendMsg("err",
              "Unknown detected time format - client from: '$ip'; CN(AN): $alt_names; used detected: '$detected'",
              "Unknown detected time format '$detected'");
-    } elsif ($target_port !~ /^\d+\z/ || !defined $target_port) {
+    } elsif ($target_port !~ /^\d+\z/ && defined $target_port) {
       sendMsg("err",
              "Unknown target port - client from: '$ip'; CN(AN): $alt_names; used target_port: '$target_port'",
              "Unknown target port '$target_port'");
-    } elsif ($attack_scale !~ /^\d+\z/ || !defined $attack_scale) {
+    } elsif ($attack_scale !~ /^\d+\z/ && defined $attack_scale) {
       sendMsg("err",
              "Unknown attack scale - client from: '$ip'; CN(AN): $alt_names; used attack_scale: '$attack_scale'",
              "Unknown attack scale '$attack_scale'");
-    } elsif ($priority !~ /^\d+\z/ || !defined $priority) {
+    } elsif ($priority !~ /^\d+\z/ && defined $priority) {
       sendMsg("err",
              "Unknown priority - client from: '$ip'; CN(AN): $alt_names; used priority: '$priority'",
              "Unknown priority '$priority'");
-    } elsif ($timeout !~ /^\d+\z/ || !defined $timeout) {
+    } elsif ($timeout !~ /^\d+\z/ && defined $timeout) {
       sendMsg("err",
              "Unknown timeout - client from: '$ip'; CN(AN): $alt_names; used timeout: '$timeout'",
              "Unknown timeout '$timeout'");