diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index b35f1bf..1634cf6 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -59,7 +59,7 @@ final class ApiController extends Controller
         string $content = null
     ) : void
     {
-        $newString = StringUtils::stringify($new);
+        $newString = StringUtils::stringify($new, \JSON_PRETTY_PRINT);
         $audit     = new Audit($account, null, $newString, $type, $subtype, $module, $ref, $content);
 
         AuditMapper::create($audit);
@@ -94,8 +94,8 @@ final class ApiController extends Controller
         string $content = null
     ) : void
     {
-        $oldString = StringUtils::stringify($old);
-        $newString = StringUtils::stringify($new);
+        $oldString = StringUtils::stringify($old, \JSON_PRETTY_PRINT);
+        $newString = StringUtils::stringify($new, \JSON_PRETTY_PRINT);
         $audit     = new Audit($account, $oldString, $newString, $type, $subtype, $module, $ref, $content);
 
         AuditMapper::create($audit);
@@ -130,7 +130,7 @@ final class ApiController extends Controller
         string $content = null
     ) : void
     {
-        $oldString = StringUtils::stringify($old);
+        $oldString = StringUtils::stringify($old, \JSON_PRETTY_PRINT);
         $audit     = new Audit($account, $oldString, null, $type, $subtype, $module, $ref, $content);
 
         AuditMapper::create($audit);
diff --git a/Theme/Backend/audit-single.tpl.php b/Theme/Backend/audit-single.tpl.php
index d50d817..667b6c1 100644
--- a/Theme/Backend/audit-single.tpl.php
+++ b/Theme/Backend/audit-single.tpl.php
@@ -21,10 +21,12 @@ echo $this->getData('nav')->render();
     <div class="col-xs-12">
         <section class="box wf-100">
             <article>
-                <?= \phpOMS\Utils\StringUtils::createDiffMarkup(
-                    \phpOMS\Views\ViewAbstract::html($this->getData('audit')->getOld() ?? ''),
-                    \phpOMS\Views\ViewAbstract::html($this->getData('audit')->getNew() ?? '')
-                ); ?>
+                <pre><?= \phpOMS\Utils\StringUtils::createDiffMarkup(
+                        \phpOMS\Views\ViewAbstract::html($this->getData('audit')->getOld() ?? ''),
+                        \phpOMS\Views\ViewAbstract::html($this->getData('audit')->getNew() ?? ''),
+                        "\n"
+                    ); ?>
+                </pre>
             </article>
         </section>
     </div>