diff --git a/git-filter-repo b/git-filter-repo
index ed3e8af..d74d10f 100755
--- a/git-filter-repo
+++ b/git-filter-repo
@@ -492,6 +492,8 @@ class Commit(_GitElementWithId):
     _write_date(file_, self.committer_date)
     file_.write('\n')
     file_.write('data %d\n%s' % (len(self.message), self.message))
+    if not self.message.endswith("\n"):
+      file_.write('\n')
     if self.from_commit:
       mark = ':' if isinstance(self.from_commit, int) else ''
       file_.write('from {}{}\n'.format(mark, self.from_commit))