diff --git a/src/DiffEntityComparison.php b/src/DiffEntityComparison.php
index 67b0a73..b1d9886 100644
--- a/src/DiffEntityComparison.php
+++ b/src/DiffEntityComparison.php
@@ -280,13 +280,13 @@ class DiffEntityComparison {
             unset($left_values[$key]);
           }
           else {
-            $summary_elements[] = $value['label'];
+            $summary_elements[] = json_decode('"\u2795"') . ' ' . $value['label'];
           }
         }
         // Add the remaining left values if not present in the right entity.
         foreach ($left_values as $key => $value) {
           if (!isset($right_values[$key])) {
-            $summary_elements[] = $value['label'];
+            $summary_elements[] = json_decode('"\u2796"') . ' ' . $value['label'];
           }
         }
         if (count($summary_elements) > 0) {