diff --git a/quantities/dimensionality.py b/quantities/dimensionality.py
index d38038e..c00190b 100644
--- a/quantities/dimensionality.py
+++ b/quantities/dimensionality.py
@@ -284,6 +284,8 @@ def _d_check_uniform(q1, q2, out=None):
 p_dict[np.less_equal] = _d_check_uniform
 p_dict[np.greater] = _d_check_uniform
 p_dict[np.greater_equal] = _d_check_uniform
+p_dict[np.maximum] = _d_check_uniform
+p_dict[np.minimum] = _d_check_uniform
 
 def _d_arctan2(q1, q2, out=None):
     try:
diff --git a/quantities/tests/test_umath.py b/quantities/tests/test_umath.py
index 6df6490..a29231d 100644
--- a/quantities/tests/test_umath.py
+++ b/quantities/tests/test_umath.py
@@ -293,3 +293,13 @@ def test_greater_equal(self):
         arr2 = (1.0, 2.0) * pq.m
         self.assertTrue(np.all(np.greater_equal(arr2, arr1)))
         self.assertFalse(np.all(np.greater_equal(arr2*0.99, arr1)))
+
+    def test_maximum(self):
+        arr1 = (998, 999) * pq.m
+        arr2 = (1e3, 5e2) * pq.m
+        self.assertQuantityEqual(np.maximum(arr1, arr2) - [1000, 999]*pq.m, [0, 0]*pq.m)
+
+    def test_minimum(self):
+        arr1 = (998, 999) * pq.m
+        arr2 = (1e3, 5e2) * pq.m
+        self.assertQuantityEqual(np.minimum(arr1, arr2) - [998, 500]*pq.m, [0, 0]*pq.m)