diff --git a/CHANGELOG.md b/CHANGELOG.md
index b91cf69..3b0ddc0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## Version 2.1.2
+
+### Refactor
+
+-   Only use the prefix 'http://standaarden.overheid.nl/owms/terms/' while retrieving the upl resource url but the value is empty.
+
 ## Version 2.1.1
 
 ### Refactor
diff --git a/pdc-samenwerkende-catalogi.php b/pdc-samenwerkende-catalogi.php
index 26dc690..b28b4ef 100644
--- a/pdc-samenwerkende-catalogi.php
+++ b/pdc-samenwerkende-catalogi.php
@@ -1,10 +1,10 @@
-<?php
+<?php declare(strict_types=1);
 
 /**
  * Plugin Name:       PDC Samenwerkende Catalogi
  * Plugin URI:        https://www.openwebconcept.nl/
  * Description:       Plugin to create a XML feed according to the Samenwerkende Catalogi requirements.
- * Version:           2.1.1
+ * Version:           2.1.2
  * Author:            Yard | Digital Agency
  * Author URI:        https://www.yard.nl/
  * License:           GPL-3.0
diff --git a/src/SamenwerkendeCatalogi/Foundation/Plugin.php b/src/SamenwerkendeCatalogi/Foundation/Plugin.php
index 4c33517..28e5291 100644
--- a/src/SamenwerkendeCatalogi/Foundation/Plugin.php
+++ b/src/SamenwerkendeCatalogi/Foundation/Plugin.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 /**
  * The base of the plugin.
@@ -27,7 +27,7 @@ class Plugin extends BasePlugin
      *
      * @const string VERSION
      */
-    public const VERSION = '2.1.1';
+    public const VERSION = '2.1.2';
 
     protected function checkForUpdate()
     {
diff --git a/src/SamenwerkendeCatalogi/Models/ScItem.php b/src/SamenwerkendeCatalogi/Models/ScItem.php
index 6f923ee..8dd571e 100644
--- a/src/SamenwerkendeCatalogi/Models/ScItem.php
+++ b/src/SamenwerkendeCatalogi/Models/ScItem.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace OWC\PDC\SamenwerkendeCatalogi\Models;
 
@@ -12,9 +12,9 @@ class ScItem extends Item
     public function getDoelgroepen(): array
     {
         $doelgroepTerms = $this->getTerms('pdc-doelgroep');
-        $doelgroepen    = [];
+        $doelgroepen = [];
 
-        if (!is_wp_error($doelgroepTerms) && !empty($doelgroepTerms)) {
+        if (! is_wp_error($doelgroepTerms) && ! empty($doelgroepTerms)) {
             foreach ($doelgroepTerms as $doelgroepTerm) {
                 $doelgroepen = $this->assignDoelgroepen($doelgroepen, $doelgroepTerm);
             }
@@ -79,10 +79,10 @@ public function getUplResource(): string
         $uplResource = get_post_meta($this->getID(), '_owc_pdc_upl_resource', true);
 
         if (empty($uplResource)) {
-            $uplResource = $this->getStrippedUplName();
+            $uplResource = sprintf('http://standaarden.overheid.nl/owms/terms/%s', $this->getStrippedUplName());
         }
 
-        return 'http://standaarden.overheid.nl/owms/terms/' . $uplResource;
+        return $uplResource;
     }
 
     /**