diff --git a/gitiles-servlet/src/main/java/com/google/gitiles/LogServlet.java b/gitiles-servlet/src/main/java/com/google/gitiles/LogServlet.java
index d904d39..4d1da1c 100644
--- a/gitiles-servlet/src/main/java/com/google/gitiles/LogServlet.java
+++ b/gitiles-servlet/src/main/java/com/google/gitiles/LogServlet.java
@@ -196,6 +196,7 @@
       walk.markUninteresting(walk.parseCommit(view.getOldRevision().getId()));
     }
     if (!Strings.isNullOrEmpty(view.getPathPart())) {
+      walk.setRewriteParents(false);
       walk.setTreeFilter(AndTreeFilter.create(
           PathFilterGroup.createFromStrings(view.getPathPart()),
           TreeFilter.ANY_DIFF));