diff --git a/doc/Changelog.md b/doc/Changelog.md
index 513cc5f..f6971bf 100644
--- a/doc/Changelog.md
+++ b/doc/Changelog.md
@@ -1,4 +1,8 @@
 
+## 0.8.5
+- (#189) - Correct an issue with how arrays with constraints on sum are 
+  grouped into rand sets. 
+
 ## 0.8.4
 - (#188) - Automatically convert floating-point numbers used in constraints
   to integers
diff --git a/etc/ivpm.info b/etc/ivpm.info
index 9654a68..3d0c584 100644
--- a/etc/ivpm.info
+++ b/etc/ivpm.info
@@ -1,4 +1,4 @@
 
 name=pyvsc
-version=0.8.4
+version=0.8.5
 
diff --git a/src/vsc/model/rand_info_builder.py b/src/vsc/model/rand_info_builder.py
index e31455a..b661b4f 100644
--- a/src/vsc/model/rand_info_builder.py
+++ b/src/vsc/model/rand_info_builder.py
@@ -329,7 +329,12 @@ def visit_expr_array_subscript(self, s : ExprArraySubscriptModel):
 
             if fm in self._field_m.keys():
                 self._field_m.pop(fm)
-       
+
+    def visit_expr_array_sum(self, e):
+        # Summing the array relates all array elements
+        for f in e.arr.field_l:
+            self.process_fieldref(f)
+
     def visit_expr_fieldref(self, e):
         # If the field is already referenced by an existing randset
         # that is not this one, we need to merge the sets
diff --git a/ve/unit/test_randsz_array.py b/ve/unit/test_randsz_array.py
index 2321065..cd19e5b 100644
--- a/ve/unit/test_randsz_array.py
+++ b/ve/unit/test_randsz_array.py
@@ -61,3 +61,70 @@ def a_c(self):
         self.assertLess(my_top_rand.a.size, 5)
         print("Size: %d" % my_top_rand.a.size)
 
+    def test_arr_sum(self):
+
+        @vsc.randobj
+        class ThreadGroupConstraintItem(object):
+            def __init__(self, aThreadNum, aSharePercent):
+                self.mThreadNum = aThreadNum
+                self.mSharePercent = aSharePercent
+
+                self.mSharePercentGoal = self.mSharePercent
+                self.mSharePercentDelta = 10
+                self.mSharePercentGoalMin = 0
+                self.mSharePercentGoalMax = 0
+                self._genSharePrecent()
+                self.mSharePercentGoalMinConstr =  vsc.rand_uint16_t(0)
+                self.mSharePercentGoalMaxConstr =  vsc.rand_uint16_t(0)
+                self.mGroupSize = vsc.rand_uint16_t(0)
+                self.GroupList = vsc.randsz_list_t(vsc.rand_uint16_t())
+                self.GroupListScore = vsc.randsz_list_t(vsc.rand_uint16_t())
+        
+            @vsc.constraint
+            def basic_c(self):
+                self.mGroupSize < self.mThreadNum
+                self.mGroupSize > 0
+                self.GroupList.size == self.mGroupSize
+                self.GroupListScore.size == self.mGroupSize
+                # self.GroupListSum == self.GroupList.sum
+                # self.GroupList.sum == self.GroupListSum 
+                # self.GroupListSum == self.mThreadNum
+                with vsc.foreach(self.GroupList, idx=True, it=False) as idx:
+                    self.GroupList[idx]<= self.mThreadNum
+                    self.GroupList[idx]>0
+                with vsc.foreach(self.GroupList, idx=True, it=False) as idx:
+                    with vsc.if_then(self.GroupList[idx] > 1):
+                        self.GroupListScore[idx] == 1
+                    with vsc.else_then():
+                        self.GroupListScore[idx] == 0
+                self.GroupList.sum == self.mThreadNum
+                # self.mSharePercentGoalMinConstr == self.mSharePercentGoalMin
+                # self.mSharePercentGoalMaxConstr == self.mSharePercentGoalMax
+                # self.GroupListScore.sum/self.mGroupSize < int(self.mSharePercentGoalMax/100)
+                # self.GroupListScore.sum/self.mGroupSize > int(self.mSharePercentGoalMin/100)
+
+            def _genSharePrecent(self):
+                """generate share percent min/max
+                """
+                if self.mSharePercent > self.mSharePercentDelta:
+                    self.mSharePercentMin = self.mSharePercent - self.mSharePercentDelta
+                else:
+                    self.mSharePercentMin = 0
+
+                if self.mSharePercent < 100 - self.mSharePercentDelta:
+                    self.mSharePercentMax = self.mSharePercent + self.mSharePercentDelta
+                else:
+                    self.mSharePercentMax = 100
+        
+        my_obj_rand = ThreadGroupConstraintItem(8, 80)
+        for i in range(10):
+            print("Iter %d", i)
+            my_obj_rand.randomize(debug=False)
+            self.assertEqual(my_obj_rand.mThreadNum, sum(my_obj_rand.GroupList))
+#            with vsc.randomize_with(my_obj_rand):
+#                my_obj_rand.GroupList.sum == my_obj_rand.mThreadNum
+            print("Thread_num: %0d, GroupList.sum: %d" % (my_obj_rand.mThreadNum, sum(my_obj_rand.GroupList)))
+            for i,it in enumerate(my_obj_rand.GroupList):
+                print("  GroupList[%d]: %d" % (i, it))
+                print("  GroupListScore[%d]: %d" % (i, my_obj_rand.GroupListScore[i]))
+