1 files changed, 2 insertions, 2 deletions
diff --git a/lib/PublicInbox/MID.pm b/lib/PublicInbox/MID.pm
index dddde092..685306db 100644
--- a/lib/PublicInbox/MID.pm
+++ b/lib/PublicInbox/MID.pm
@@ -72,7 +72,7 @@ sub extract_mids {
  
  sub mids ($) {
          my ($hdr) = @_;
-        my @mids = $hdr->header_raw('Message-Id');
+        my @mids = $hdr->header_raw('Message-ID');
          uniq_mids(extract_mids(@mids));
  }
  
@@ -81,7 +81,7 @@ sub mids ($) {
  # import and index without relying on HTTP endpoints
  sub mids_for_index ($) {
          my ($hdr) = @_;
-        my @mids = $hdr->header_raw('Message-Id');
+        my @mids = $hdr->header_raw('Message-ID');
          my @alts = $hdr->header_raw('X-Alt-Message-ID');
          uniq_mids(extract_mids(@mids, @alts));
  }