diff --git a/modules/account/move.py b/modules/account/move.py
index 2a8b4cdd51..7f2064b644 100644
--- a/modules/account/move.py
+++ b/modules/account/move.py
@@ -1309,6 +1309,8 @@ class Line(ModelSQL, ModelView):
 
         reconciliations = []
         for lines in lines_list:
+            if not lines:
+                continue
             for line in lines:
                 if line.reconciliation:
                     raise AccessError(