diff --git a/skimage/filter/rank/tests/test_rank.py b/skimage/filter/rank/tests/test_rank.py
index 1d573b81..cedeb92d 100644
--- a/skimage/filter/rank/tests/test_rank.py
+++ b/skimage/filter/rank/tests/test_rank.py
@@ -437,7 +437,7 @@ def test_16bit():
         image[10, 10] = value
         assert rank.minimum(image, selem)[10, 10] == 0
         assert rank.maximum(image, selem)[10, 10] == value
-        assert rank.mean(image, selem)[10, 10] == value / selem.size
+        assert rank.mean(image, selem)[10, 10] == int(value / selem.size)
 
 
 def test_bilateral():