diff --git a/src/applications/differential/parser/DifferentialChangesetParser.php b/src/applications/differential/parser/DifferentialChangesetParser.php
index abecf15f2c..ab17a30677 100644
--- a/src/applications/differential/parser/DifferentialChangesetParser.php
+++ b/src/applications/differential/parser/DifferentialChangesetParser.php
@@ -593,6 +593,8 @@ final class DifferentialChangesetParser {
     $this->setNewLines($hunk_parser->getNewLines());
     $this->setIntraLineDiffs($hunk_parser->getIntraLineDiffs());
     $this->setVisibileLinesMask($hunk_parser->getVisibleLinesMask());
+    $this->setMissingOldLineMarkerMap($hunk_parser->getOldLineMarkerMap());
+    $this->setMissingNewLineMarkerMap($hunk_parser->getNewLineMarkerMap());
 
     $new_corpus = $hunk_parser->getNewCorpus();
     $new_corpus_block = implode('', $new_corpus);
diff --git a/src/applications/differential/parser/DifferentialHunkParser.php b/src/applications/differential/parser/DifferentialHunkParser.php
index 09bf2945cf..d62ee5c705 100644
--- a/src/applications/differential/parser/DifferentialHunkParser.php
+++ b/src/applications/differential/parser/DifferentialHunkParser.php
@@ -444,9 +444,9 @@ final class DifferentialHunkParser {
       $old_line = $hunk->getOldOffset();
       $new_line = $hunk->getNewOffset();
       if ($old_line > 1) {
-        $old_line_marker_map[] = $old_line;
+        $old_line_marker_map[$old_line] = true;
       } else if ($new_line > 1) {
-        $new_line_marker_map[] = $new_line;
+        $new_line_marker_map[$new_line] = true;
       }
 
       $num_lines = count($lines);