diff --git a/src/client/types/format.ts b/src/client/types/format.ts
index 1d4fcf2..ba75269 100644
--- a/src/client/types/format.ts
+++ b/src/client/types/format.ts
@@ -1,17 +1,21 @@
-declare global {
-    interface map {
-        zoom: number
-        center: {
-            lat: number
-            lng: number
-        }
-    }
 
+
+declare global {
+    interface LatLng {
+        lat: number
+        lng: number
+    }
     interface geoloc {
         latlon: [number, number]
         notes: string
     }
 
+    interface map {
+        zoom: number
+        center: LatLng
+    }
+
+
     interface leg {
         title: string
         day_title: string[]