diff --git a/issue12570.diff b/issue12570.diff
new file mode 100644
index 0000000..7e4cdda
--- /dev/null
+++ b/issue12570.diff
@@ -0,0 +1,13 @@
+diff --git a/tryton/modules/account/account.py b/tryton/modules/account/account.py
+index 41c591f51a..f6f6a97409 100644
+--- a/tryton/modules/account/account.py
++++ b/tryton/modules/account/account.py
+@@ -2472,6 +2472,8 @@ class GeneralLedgerLine(ModelSQL, ModelView):
+         account_ids, party_ids = set(), set()
+         for r in records:
+             account_parties[r.id] = None
++            if not r.party:
++                continue
+             account_party2ids[r.account.id, r.party.id].append(r.id)
+             account_ids.add(r.account.id)
+             party_ids.add(r.party.id)
diff --git a/series b/series
index 4b33f98..f37d8a6 100644
--- a/series
+++ b/series
@@ -57,3 +57,5 @@ issue12576.diff # [account_stock_eu] Could not find the intrastat countries for
 issue7677.diff # [trytond] Do not set rec_name for unsaved record
 
 issue7672.diff # [stock] Always fill product and template of cost price revision
+
+issue12570.diff # [account] Do not compute account party for general ledger line without party