diff --git a/bfxbot/models.py b/bfxbot/models.py
index 2df428e..0a8d897 100644
--- a/bfxbot/models.py
+++ b/bfxbot/models.py
@@ -12,12 +12,13 @@ TAKER_FEE = 0.2
 MAKER_FEE = 0.1
 
 
-def __add_to_dict_list__(dict: Dict[int, List], k, v):
-    if k not in dict:
-        dict[k] = [v]
-        return
+def __add_to_dict_list__(dictionary: Dict[int, List], k, v) -> Dict[int, List]:
+    if k not in dictionary:
+        dictionary[k] = [v]
+    else:
+        dictionary[k].append(v)
 
-    dict[k].append(v)
+    return dictionary
 
 
 class EventKind(Enum):
@@ -133,17 +134,16 @@ class SymbolStatus:
     def add_order(self, order: Order):
         if self.strategy:
             self.strategy.order_on_new_tick(order, self)
-        __add_to_dict_list__(self.orders, self.current_tick, order)
+        self.orders = __add_to_dict_list__(self.orders, self.current_tick, order)
 
     # Applies strategy and adds position to list
     async def add_position(self, position: Position):
         # if a strategy is defined then the strategy takes care of creating a PW for us
-
         if not self.strategy:
             pw = PositionWrapper(position)
         else:
             pw = await self.__apply_strategy_to_position__(position)
-        __add_to_dict_list__(self.positions, self.current_tick, pw)
+        self.positions = __add_to_dict_list__(self.positions, self.current_tick, pw)
 
     def all_prices(self) -> List[float]:
         return list(map(lambda x: self.prices[x], range(1, self.current_tick + 1)))