diff --git a/src/yunohost/app.py b/src/yunohost/app.py
index 414035e77..a3c10df0b 100644
--- a/src/yunohost/app.py
+++ b/src/yunohost/app.py
@@ -1096,8 +1096,9 @@ def app_install(
                 )
 
             # Remove all permission in LDAP
-            for permission_name in user_permission_list(apps=[app_instance_name])["permissions"].keys():
-                permission_delete(permission_name, force=True, sync_perm=False)
+            for permission_name in user_permission_list()["permissions"].keys():
+                if permission_name.startswith(app_instance_name + "."):
+                    permission_delete(permission_name, force=True, sync_perm=False)
 
             if remove_retcode != 0:
                 msg = m18n.n("app_not_properly_removed", app=app_instance_name)
diff --git a/src/yunohost/backup.py b/src/yunohost/backup.py
index 85487d07f..a17b752f6 100644
--- a/src/yunohost/backup.py
+++ b/src/yunohost/backup.py
@@ -1546,8 +1546,9 @@ class RestoreManager:
                 shutil.rmtree(app_settings_new_path, ignore_errors=True)
 
                 # Remove all permission in LDAP for this app
-                for permission_name in user_permission_list(apps=[app_instance_name])["permissions"].keys():
-                    permission_delete(permission_name, force=True)
+                for permission_name in user_permission_list()["permissions"].keys():
+                    if permission_name.startswith(app_instance_name + "."):
+                        permission_delete(permission_name, force=True)
 
                 # TODO Cleaning app hooks