diff --git a/src/Form/JobItemForm.php b/src/Form/JobItemForm.php
index bd64ade..d33f25a 100644
--- a/src/Form/JobItemForm.php
+++ b/src/Form/JobItemForm.php
@@ -486,6 +486,12 @@ class JobItemForm extends TmgmtFormBase {
    */
   function compareHTMLTags($source, $translation) {
     $pattern = "/\<(.*?)\>/";
+    if (is_array($source) && isset($source['value'])) {
+      $source = $source['value'];
+    };
+    if (is_array($translation) && isset($translation['value'])) {
+      $translation = $translation['value'];
+    }
     preg_match_all($pattern, $source, $source_tags);
     preg_match_all($pattern, $translation, $translation_tags);
     $message = '';