diff --git a/common/lib/capa/capa/verifiers/draganddrop.py b/common/lib/capa/capa/verifiers/draganddrop.py
index 91d5759390..9bfbf982ff 100644
--- a/common/lib/capa/capa/verifiers/draganddrop.py
+++ b/common/lib/capa/capa/verifiers/draganddrop.py
@@ -144,7 +144,7 @@ class DragAndDrop(object):
         # every element are equal with correct positions
         for groupname in self.correct_groups:
             rules_executed = 0
-            for rule in ('exact', 'anyof', 'unorderly_equal'):
+            for rule in ('exact', 'anyof', 'unordered_equal'):
                 # every group has only one rule
                 if self.correct_positions[groupname].get(rule, None):
                     rules_executed += 1
@@ -190,7 +190,7 @@ class DragAndDrop(object):
                      - draggables can be placed in any order:
                     user ['1','2','3','4'] is 'anyof' equal to ['4', '2', '1', 3']
 
-            'unorderly_equal' is same as 'exact' but disregards on order
+            'unordered_equal' is same as 'exact' but disregards on order
 
         Equality functions:
 
@@ -220,7 +220,7 @@ class DragAndDrop(object):
                 else:
                     return False
 
-        if flag == 'unorderly_equal':
+        if flag == 'unordered_equal':
             if len(correct) != len(user):
                 return False
             temp = correct[:]
diff --git a/common/lib/capa/capa/verifiers/tests_draganddrop.py b/common/lib/capa/capa/verifiers/tests_draganddrop.py
index 257d404679..cb9fef1865 100644
--- a/common/lib/capa/capa/verifiers/tests_draganddrop.py
+++ b/common/lib/capa/capa/verifiers/tests_draganddrop.py
@@ -343,17 +343,17 @@ class Test_DragAndDrop_Grade(unittest.TestCase):
         {
             'draggables': ['a'],
             'targets': ['target1',  'target4', 'target7', 'target10'],
-            'rule': 'unorderly_equal'
+            'rule': 'unordered_equal'
         },
         {
             'draggables': ['b'],
             'targets': ['target2', 'target5', 'target8'],
-            'rule': 'unorderly_equal'
+            'rule': 'unordered_equal'
         },
         {
             'draggables': ['c'],
             'targets': ['target3', 'target6', 'target9'],
-            'rule': 'unorderly_equal'
+            'rule': 'unordered_equal'
         }]
         self.assertTrue(draganddrop.grade(user_input, correct_answer))