diff --git a/dev/git/git-on-tree b/dev/git/git-on-tree
index edb77e9..55171cb 100755
--- a/dev/git/git-on-tree
+++ b/dev/git/git-on-tree
@@ -7,7 +7,7 @@ cmd=$3
 
 function main()
 {
-  revs=`git rev-list --reverse ${start_rev}..${end_rev}`
+  revs=`git rev-list --topo-order --reverse ${start_rev}..${end_rev}`
   for rev in $revs; do
     git checkout --quiet $rev
     eval $cmd