diff --git a/src/main/java/video/domain/Customer.java b/src/main/java/video/domain/Customer.java
index 0a8081d..3bb6a68 100644
--- a/src/main/java/video/domain/Customer.java
+++ b/src/main/java/video/domain/Customer.java
@@ -28,18 +28,11 @@ public RentalResult rentalMovies() {
         int frequentRenterPoints = 0;
         for (Rental each : rentals) {
             int thisAmount = each.amount();
-            frequentRenterPoints += frequentRenterPoints(each);
+            frequentRenterPoints += each.frequentRenterPoints();
             totalAmount += thisAmount;
         }
 
         return new RentalResult(totalAmount, frequentRenterPoints);
     }
 
-    private int frequentRenterPoints(Rental each) {
-        // 新作を二日以上借りた場合はボーナスポイント
-        if ((each.getMovie().getPriceType() == PriceType.NEW_RELEASE) &&
-            each.getDaysRented() > 1) return 2;
-        return 1;
-    }
-
 }
\ No newline at end of file
diff --git a/src/main/java/video/domain/Rental.java b/src/main/java/video/domain/Rental.java
index 796858a..0652924 100644
--- a/src/main/java/video/domain/Rental.java
+++ b/src/main/java/video/domain/Rental.java
@@ -37,4 +37,11 @@ int amount() {
         }
         return thisAmount;
     }
+
+    int frequentRenterPoints() {
+        // 新作を二日以上借りた場合はボーナスポイント
+        if ((getMovie().getPriceType() == PriceType.NEW_RELEASE) &&
+            getDaysRented() > 1) return 2;
+        return 1;
+    }
 }
\ No newline at end of file