diff --git a/src/order_watcher/order_state_watcher.ts b/src/order_watcher/order_state_watcher.ts
index 3e8fd7e3ac..3c09a2743a 100644
--- a/src/order_watcher/order_state_watcher.ts
+++ b/src/order_watcher/order_state_watcher.ts
@@ -174,7 +174,6 @@ export class OrderStateWatcher {
                 // Invalidate cache
                 const args = decodedLog.args as LogFillContractEventArgs;
                 this._orderFilledCancelledLazyStore.deleteFilledTakerAmount(args.orderHash);
-                this._orderFilledCancelledLazyStore.deleteFilledTakerAmount(args.orderHash);
                 // Revalidate orders
                 const orderHash = args.orderHash;
                 const isOrderWatched = !_.isUndefined(this._orderByOrderHash[orderHash]);
@@ -188,7 +187,6 @@ export class OrderStateWatcher {
                 // Invalidate cache
                 const args = decodedLog.args as LogCancelContractEventArgs;
                 this._orderFilledCancelledLazyStore.deleteCancelledTakerAmount(args.orderHash);
-                this._orderFilledCancelledLazyStore.deleteCancelledTakerAmount(args.orderHash);
                 // Revalidate orders
                 const orderHash = args.orderHash;
                 const isOrderWatched = !_.isUndefined(this._orderByOrderHash[orderHash]);