diff --git a/tests/test_fcheck.py b/tests/test_fcheck.py
index 482501432..a452def42 100644
--- a/tests/test_fcheck.py
+++ b/tests/test_fcheck.py
@@ -328,7 +328,8 @@ def test_resolver_in_a_level(self):
                 mock.patch.object(fcheck, "program_placed", lambda key: {"values": level_values}), \
                 mock.patch.object(fcheck, "placed", lambda: {"values": boot_values}), \
                 mock.patch.object(fcheck, "aligned_values", lambda *a: {}), \
-                mock.patch.object(fcheck, "level_address", lambda level, a: 0x0028C080 if a == 0x00263640 else None):
+                mock.patch.object(fcheck, "level_address", lambda level, a: 0x0028C080 if a == 0x00263640 else None), \
+                mock.patch.object(fcheck, "copy_map", lambda level, kind="data": {}):
             r = fcheck.Resolver(prog, "func_L00_002A0200", {"symbols": [], "sections": []}, {}, {})
             self.assertEqual(r.named("func_00200000"), 0x002A0100)
             self.assertEqual(r.named("func_00150000"), 0x00150000)