diff --git a/gerbolyze/protoboard.py b/gerbolyze/protoboard.py
index 42bfb9d..c9c8d00 100644
--- a/gerbolyze/protoboard.py
+++ b/gerbolyze/protoboard.py
@@ -54,9 +54,9 @@ class ManhattanPattern(Pattern):
def content(self):
return textwrap.dedent('''
-
-
-
+
+
+
'''.strip())