diff --git a/command_line/cadbiom_cmd/solution_search.py b/command_line/cadbiom_cmd/solution_search.py
index 0d1d756d45f1b4c92da1193e0e3a7b44aeb5feba..2490b9fe1edfe5028b3b07f02feefc0a711e2b10 100644
--- a/command_line/cadbiom_cmd/solution_search.py
+++ b/command_line/cadbiom_cmd/solution_search.py
@@ -196,6 +196,7 @@ def main2(chart_file, mac_file, mac_step_file, mac_complete_file, mac_strong_fil
     if continue_run:
         # Reload previous working files
         try:
+            ## TODO: see docstring of read_mac_file
             previous_frontier_places = read_mac_file(mac_file)
             current_start_prop = make_logical_formula(previous_frontier_places,
                                                       start_prop)
@@ -717,6 +718,9 @@ def compute_macs(params):
 def read_mac_file(file):
     """Return a list a fontier places already found in mac file
 
+    .. TODO: use tools/solutions.py functions to reload frontiers
+        => put these functions into the library...
+
     .. note:: use make_logical_formula() to get the new start_prop of the run.
 
     :param: Mac file of a previous run