diff --git a/extracted_text.py b/extracted_text.py
index 23cd519..c84c77b 100644
--- a/extracted_text.py
+++ b/extracted_text.py
@@ -4,14 +4,14 @@ import enum
 
 
 # TODO handle grapheme cluster positions?
+# TODO Use type annotations for attr.ib types when support for Python 3.5 is dropped
+# TODO types are not validated (attr does not do this yet)
 
 
 @attr.s(frozen=True)
 class ExtractedText:
     segments = attr.ib()
     joiner = attr.ib(type=str)
-    # XXX Use type annotations for attr types when support for Python 3.5 is dropped
-    # XXX Also I think these are not validated?
 
     @property
     def text(self):
diff --git a/extracted_text_test.py b/extracted_text_test.py
index 2e916cd..4919a76 100644
--- a/extracted_text_test.py
+++ b/extracted_text_test.py
@@ -6,7 +6,7 @@ from extracted_text import ExtractedText, ExtractedTextSegment
 def test_text():
     test1 = ExtractedText([
         ExtractedTextSegment('s0', 'foo'),
-        ExtractedTextSegment(1, 'bar'),
+        ExtractedTextSegment('s1', 'bar'),
         ExtractedTextSegment('s2', 'bazinga')
     ], ' ')