diff --git a/tests/test_intersperse.py b/tests/test_intersperse.py
index e99fb4a91c322aa4ce3b2d6452fcc311768f2bb9..c664f2087e68aee7754b11a1a7dd651039baef3c 100644
--- a/tests/test_intersperse.py
+++ b/tests/test_intersperse.py
@@ -1,7 +1,11 @@
+"""Unit tests for the intersperse moudle."""
+
 from muppet.intersperse import intersperse
 
+
 def test_intersperse():
     assert list(intersperse(1, [2, 3, 4])) == [2, 1, 3, 1, 4]
 
+
 def test_intersperse_empty():
     assert list(intersperse(1, [])) == []
diff --git a/tests/test_parse.py b/tests/test_parse.py
index c48d414b6e19de7e3b6b83a22bce529930657196..f7f2f68bbb5378adf456cbea0aa3cb051e892028 100644
--- a/tests/test_parse.py
+++ b/tests/test_parse.py
@@ -1,5 +1,5 @@
 """
-Tests for the "parser".
+Unit tests for the "parser".
 
 TODO rename parser to "re-interpreter" (or similar), `puppet parse` is
 the parser, we just rewrite the tree "slightly".