diff --git a/src/configuration/attrUpdateMatrix.ts b/src/configuration/attrUpdateMatrix.ts
index 45cc46ca..a8f041c9 100644
--- a/src/configuration/attrUpdateMatrix.ts
+++ b/src/configuration/attrUpdateMatrix.ts
@@ -79,6 +79,14 @@ const attrUpdateMatrix: AttrUpdateMatrix<EntityDict> = {
                 },
             },
         },
+        timeoutAt: {
+            actions: ['startPaying'],
+            filter: {
+                iState: {
+                    $in: ['unpaid', 'paying'],
+                }
+            }
+        },
     },
     refund: {
         externalId: {