diff --git a/extension/Classes/Core/AbstractBuildForm.php b/extension/Classes/Core/AbstractBuildForm.php
index 907bbbf759b0ba4eb2820a49c781dc383a473b48..b1749c67af12af276e473734bff159ac02c3cee4 100644
--- a/extension/Classes/Core/AbstractBuildForm.php
+++ b/extension/Classes/Core/AbstractBuildForm.php
@@ -2453,7 +2453,7 @@ abstract class AbstractBuildForm {
         }
 
         foreach ($formElement[$subrecordToken] as $row) {
-
+            $rowHtml = '';
             if ($formElement[FE_MODE] == FE_MODE_READONLY) {
                 $editToolTip = 'Show';
                 $editSymbol = SYMBOL_SHOW;