diff --git a/inc/DifferenceEngine.php b/inc/DifferenceEngine.php
index 2578d07ee2f8e58c7b72669318eb2100253857e8..6e1d07382a8aa7aef0d301200ca5db16cc32da26 100644
--- a/inc/DifferenceEngine.php
+++ b/inc/DifferenceEngine.php
@@ -1021,7 +1021,7 @@ class TableDiffFormatter extends DiffFormatter {
         $l1 = $lang['line'].' '.$xbeg;
         $l2 = $lang['line'].' '.$ybeg;
         $r = '<tr><td class="diff-blockheader" colspan="2">'.$l1.":</td>\n".
-             '    <td class="diff-blockheader" colspan="2">'.$l2.":</td>\n".
+             '<td class="diff-blockheader" colspan="2">'.$l2.":</td>\n".
              "</tr>\n";
         return $r;
     }