diff --git a/setup_main_tex_file.py b/setup_main_tex_file.py
index 2062535..30dbb17 100755
--- a/setup_main_tex_file.py
+++ b/setup_main_tex_file.py
@@ -110,6 +110,14 @@ def git_integration(func):
                     tree,
                     parents)
 
+            basket = repo.branches.get(branch_name)
+            cherry = repo.lookup_branch('refs/heads/master').target
+            base = repo.merge_base(cherry, basket.target)
+            base_tree = cherry.parents[0].tree
+
+            index = repo.merge_trees(base_tree, basket, cherry)
+            tree_id = index.write_tree(repo)
+            repo.create_commit(basket.name, author, committer, 'bof', tree_id, [basket.target])
 
     return inner