diff --git a/prepare-source.mak b/prepare-source.mak
index 8a6fd905..c512140e 100644
--- a/prepare-source.mak
+++ b/prepare-source.mak
@@ -18,6 +18,8 @@ man: rsync.1 rsyncd.conf.5
 
 rsync.1: rsync.yo
 	yodl2man -o rsync.1 rsync.yo
+	-./tweak_manpage_dashes rsync.1
 
 rsyncd.conf.5: rsyncd.conf.yo
 	yodl2man -o rsyncd.conf.5 rsyncd.conf.yo
+	-./tweak_manpage_dashes rsyncd.conf.5