diff --git a/dungeonbattle/interfaces_test.py b/dungeonbattle/interfaces_test.py
index 34a50f9..849e28b 100644
--- a/dungeonbattle/interfaces_test.py
+++ b/dungeonbattle/interfaces_test.py
@@ -8,7 +8,7 @@ class TestInterfaces(unittest.TestCase):
         """
         Create a map and check that it is well parsed.
         """
-        m = Map.load_from_string(".#\n#.\n")
+        m = Map.load_from_string(".█\n█.\n")
         self.assertEqual(m.width, 2)
         self.assertEqual(m.height, 2)
-        self.assertEqual(m.draw_string(), ".#\n#.")
+        self.assertEqual(m.draw_string(), ".█\n█.")