diff --git a/src/warden-server/lib/Warden.pm b/src/warden-server/lib/Warden.pm
index d2fad32564e087107fe948144f799380d557030d..0b22a80b0728aca1132797e478cae7bd00181ccf 100755
--- a/src/warden-server/lib/Warden.pm
+++ b/src/warden-server/lib/Warden.pm
@@ -242,30 +242,30 @@ sub saveNewEvent
 
     my $change_string = "";
     if ($target_port !~ /^\d+\z/) {
-      $change_string = $change_string . "target_port: $target_port";
+      $change_string = $change_string . "target_port: '$target_port'";
       $target_port = undef;
     }
     if ($attack_scale !~ /^\d+\z/) {
       if ($change_string eq "") {
-        $change_string = $change_string . "attack_scale: $attack_scale";
+        $change_string = $change_string . "attack_scale: '$attack_scale'";
       } else {
-        $change_string = $change_string . ", attack_scale: $attack_scale";
+        $change_string = $change_string . ", attack_scale: '$attack_scale'";
       }
       $attack_scale = undef;
     }
     if ($priority !~ /^\d+\z/) {
       if ($change_string eq "") {
-        $change_string = $change_string . "priority: $priority";
+        $change_string = $change_string . "priority: '$priority'";
       } else {
-        $change_string = $change_string . ", priority: $priority";
+        $change_string = $change_string . ", priority: '$priority'";
       }
       $priority = undef;
     }
     if ($timeout !~ /^\d+\z/) {
       if ($change_string eq "") {
-        $change_string = $change_string . "attack_scale: $timeout";
+        $change_string = $change_string . "attack_scale: '$timeout'";
       } else {
-        $change_string = $change_string . ", attack_scale: $timeout";
+        $change_string = $change_string . ", attack_scale: '$timeout'";
       }
       $timeout = undef;
     }