diff --git a/Panel/modules/addonsmanager/scripts/workshop/panel_generated_steamcmd_job b/Panel/modules/addonsmanager/scripts/workshop/panel_generated_steamcmd_job
index a2f6113c..f8791e3a 100755
--- a/Panel/modules/addonsmanager/scripts/workshop/panel_generated_steamcmd_job
+++ b/Panel/modules/addonsmanager/scripts/workshop/panel_generated_steamcmd_job
@@ -34,14 +34,26 @@ json_value() {
 }
 
 json_items() {
-  perl -0777 -ne '
-    if (/"items"\s*:\s*\[(.*?)\]/s) {
+  MANIFEST_FILE="$MANIFEST" perl -0777 -e '
+    my $f = $ENV{"MANIFEST_FILE"};
+    open my $fh, "<", $f or exit 1;
+    local $/;
+    my $json = <$fh>;
+
+    my %seen;
+
+    if ($json =~ /"items"\s*:\s*\[(.*?)\]/s) {
       my $x = $1;
-      while ($x =~ /"([0-9]{3,20})"/g) { print "$1\n"; }
-      while ($x =~ /(?<![0-9])([0-9]{3,20})(?![0-9])/g) { print "$1\n"; }
+      while ($x =~ /"([0-9]{3,20})"/g) {
+        print "$1\n" unless $seen{$1}++;
+      }
+      while ($x =~ /(?<![0-9])([0-9]{3,20})(?![0-9])/g) {
+        print "$1\n" unless $seen{$1}++;
+      }
     }
-  ' "$MANIFEST" | awk '!seen[$0]++'
+  '
 }
+
 ACTION="$(json_value action)"
 APPID="$(json_value workshop_app_id)"
 STEAM_APPID="$(json_value steam_app_id)"