diff --git a/main.py b/main.py
index ad4cc38..390c4bc 100644
--- a/main.py
+++ b/main.py
@@ -3,6 +3,7 @@ import os.path
 import docker
 import restic
 import yaml
+import json
 import configparser
 
 
@@ -112,7 +113,7 @@ def yaml_to_services_list(filepath: str) -> dict|None:
             for dependance in ycontent["services"]["depends_on"]:
                 mustbefore.append(dependance)
 
-        serviceslist[servicename] = {"must_before": mustbefore, "must_after": None, "backupdone": False}
+        serviceslist[servicename] = {"must_before": mustbefore, "must_after": [], "backupdone": False}
 
     # on reparcourt une seconde fois pour définir de quels services ilssont les dépendances
     for service in serviceslist:
@@ -180,4 +181,4 @@ if __name__ == '__main__':
 
     #read_config_file()
 
-    print(yaml_to_services_list(composefile))
+    print(json.dump(yaml_to_services_list(composefile), indent=4))