diff --git a/tests/test_lnpeer.py b/tests/test_lnpeer.py
index 92d1ff3e4..d8a928011 100644
--- a/tests/test_lnpeer.py
+++ b/tests/test_lnpeer.py
@@ -124,6 +124,9 @@ class MockWallet:
     receive_requests = {}
     adb = MockADB()
 
+    def get_invoice(self, key):
+        pass
+
     def get_request(self, key):
         pass