diff --git a/CVSROOT/commitcheck.pl b/CVSROOT/commitcheck.pl
index 1ffec219f88..76aeb785814 100755
--- a/CVSROOT/commitcheck.pl
+++ b/CVSROOT/commitcheck.pl
@@ -390,6 +390,7 @@ if (m:^mozilla/gfx/src/qt/.*$:) {return '161';}
 if (m:^mozilla/widget/src/qt/.*$:) {return '161';}
 if (m:^mozilla/extensions/p3p/.*$:) {return '162';}
 if (m:^mozilla/chimera/.*$:) {return '164';}
+if (m:^mozilla/layout/mathml/.*$:) {return '165';}
 if (m:^mozilla/browser/.*$:) {return '166';}
 }
 if ($b eq 'NSPRPUB_PRE_4_2_CLIENT_BRANCH') {