diff --git a/skimage/rank/setup.py b/skimage/rank/setup.py
index e9af9446..8c5a595a 100644
--- a/skimage/rank/setup.py
+++ b/skimage/rank/setup.py
@@ -12,4 +12,7 @@ setup(
                     Extension("crank16", ["crank16.pyx"], include_dirs=[np.get_include()]),
                     Extension("crank16_bilateral", ["crank16_bilateral.pyx"], include_dirs=[np.get_include()]),
                     Extension("crank16_percentiles", ["crank16_percentiles.pyx"], include_dirs=[np.get_include()])]
-)
\ No newline at end of file
+)
+
+
+
diff --git a/skimage/rank/test/test_16bitbilateral.py b/skimage/rank/tests/test_16bitbilateral.py
similarity index 100%
rename from skimage/rank/test/test_16bitbilateral.py
rename to skimage/rank/tests/test_16bitbilateral.py
diff --git a/skimage/rank/test/test_benchmark.py b/skimage/rank/tests/test_benchmark.py
similarity index 100%
rename from skimage/rank/test/test_benchmark.py
rename to skimage/rank/tests/test_benchmark.py
diff --git a/skimage/rank/test/test_suite.py b/skimage/rank/tests/test_suite.py
similarity index 100%
rename from skimage/rank/test/test_suite.py
rename to skimage/rank/tests/test_suite.py
diff --git a/skimage/rank/test/tools.py b/skimage/rank/tests/tools.py
similarity index 100%
rename from skimage/rank/test/tools.py
rename to skimage/rank/tests/tools.py