diff --git a/lib/Pear/LocalLoop/Controller/Api/Upload.pm b/lib/Pear/LocalLoop/Controller/Api/Upload.pm
index c376129..5d2eb0c 100644
--- a/lib/Pear/LocalLoop/Controller/Api/Upload.pm
+++ b/lib/Pear/LocalLoop/Controller/Api/Upload.pm
@@ -70,6 +70,10 @@ has error_messages => sub {
     search_name => {
       required => { message => 'search_name is missing', status => 400 },
     },
+    postcode => {
+      required => { message => 'postcode is missing', status => 400 },
+      postcode => { message => 'postcode must be valid', status => 400 },
+    },
   };
 };