diff --git a/testing/test_mark.py b/testing/test_mark.py
index c22e9dbb5..273ba2298 100644
--- a/testing/test_mark.py
+++ b/testing/test_mark.py
@@ -435,7 +435,7 @@ class TestFunctional:
                 def test_b(self):
                     assert True
                 class TestC(object):
-                    # this one didnt get marked
+                    # this one didn't get marked
                     def test_d(self):
                         assert True
         """
diff --git a/testing/test_nose.py b/testing/test_nose.py
index f60c3af53..16d8d1fc0 100644
--- a/testing/test_nose.py
+++ b/testing/test_nose.py
@@ -253,7 +253,7 @@ def test_apiwrapper_problem_issue260(testdir):
 
 
 def test_setup_teardown_linking_issue265(testdir):
-    # we accidentally didnt integrate nose setupstate with normal setupstate
+    # we accidentally didn't integrate nose setupstate with normal setupstate
     # this test ensures that won't happen again
     testdir.makepyfile(
         '''