diff --git a/src/main/java/org/ntlab/nemophila/models/shops/ShopManager.java b/src/main/java/org/ntlab/nemophila/models/shops/ShopManager.java
index 3ac567e..01812ab 100644
--- a/src/main/java/org/ntlab/nemophila/models/shops/ShopManager.java
+++ b/src/main/java/org/ntlab/nemophila/models/shops/ShopManager.java
@@ -32,18 +32,16 @@
     //お店の情報を全て返す
     public Collection<Shop> getShops(double upperRightLongitude,
                                      double upperRightLatitude,
-                                     double lowerLeftlongitude,
-                                     double lowerLeftlatitude) {
+                                     double lowerLeftLongitude,
+                                     double lowerLeftLatitude) {
         Collection<Shop> response = new ArrayList<>();
 
         for (Shop shop: shopsMap.values()) {
             double longitude = shop.getLongitude();
             double latitude = shop.getLatitude();
 
-            if (longitude < upperRightLongitude && longitude > lowerLeftlongitude) {
-                if (latitude < upperRightLatitude && latitude > lowerLeftlatitude) {
-                    response.add(shop);
-                }
+            if ((lowerLeftLongitude < longitude && longitude < upperRightLongitude) && (lowerLeftLatitude < latitude && latitude < upperRightLatitude)) {
+                response.add(shop);
             }
         }