1 files changed, 6 insertions, 0 deletions
diff --git a/lib/PublicInbox/ViewDiff.pm b/lib/PublicInbox/ViewDiff.pm
index 6b8d9437..e9cfc368 100644
--- a/lib/PublicInbox/ViewDiff.pm
+++ b/lib/PublicInbox/ViewDiff.pm
@@ -141,8 +141,14 @@ sub flush_diff ($$$) {
          my $spfx = $ctx->{-spfx};
          my $state = DSTATE_INIT;
          my $dctx = { Q => '' }; # {}, keys: oid_a, oid_b, path_a, path_b
+        my $dpfx = $ctx->{-dpfx}; # leading spaces for interdiff
+        my $dpfx_re = qr/\A$dpfx/ if defined $dpfx;
  
          foreach my $s (@$diff) {
+                if (defined($dpfx)) {
+                        $s =~ s/$dpfx_re//;
+                        $$dst .= $dpfx;
+                }
                  if ($s =~ /^---$/) {
                          to_state($dst, $state, DSTATE_STAT);
                          $$dst .= $s;