diff --git i/diff-test.txt w/diff-test.txt
index 5fd0037..3f0bbd0 100644
--- i/diff-test.txt
+++ w/diff-test.txt
@@ -1,6 +1,10 @@
-foo
+foo yeah
 	bar
-return parent_names + [self.tree_name.value]
+parent_names += (self.tree_name.value,)
+if include_module_names:
+	skdjfh
+	kjlkfjs
+return parent_names

-foo
-bar
+foo-one
+bar-two