diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
index 4cf18d50b980..82d0f5cc4580 100644
--- a/lib/matplotlib/__init__.py
+++ b/lib/matplotlib/__init__.py
@@ -1502,6 +1502,7 @@ def tk_window_focus():
     'matplotlib.tests.test_image',
     'matplotlib.tests.test_legend',
     'matplotlib.tests.test_lines',
+    'matplotlib.tests.test_marker',
     'matplotlib.tests.test_mathtext',
     'matplotlib.tests.test_mlab',
     'matplotlib.tests.test_offsetbox',
diff --git a/lib/matplotlib/tests/test_marker.py b/lib/matplotlib/tests/test_marker.py
index e2290f029dcc..42790f7b9d7c 100644
--- a/lib/matplotlib/tests/test_marker.py
+++ b/lib/matplotlib/tests/test_marker.py
@@ -1,7 +1,6 @@
 import numpy as np
 from matplotlib import markers
-
-import pytest
+from nose.tools import assert_raises
 
 
 def test_markers_valid():
@@ -14,7 +13,7 @@ def test_markers_valid():
 
 def test_markers_invalid():
     marker_style = markers.MarkerStyle()
-    mrk_array = np.array([[-0.5, 0,  1, 2, 3]])
+    mrk_array = np.array([[-0.5, 0, 1, 2, 3]])
     # Checking this does fail.
-    with pytest.raises(ValueError):
+    with assert_raises(ValueError):
         marker_style.set_marker(mrk_array)