diff --git a/src/store/storeTypes.ts b/src/store/storeTypes.ts
index 417127b..87edb6d 100644
--- a/src/store/storeTypes.ts
+++ b/src/store/storeTypes.ts
@@ -51,6 +51,7 @@ export interface APIData {
   stations?: StationAPIData[];
   dispatchers?: string[][];
   trains?: TrainAPIData[];
+  connectedSocketCount: number;
 }
 
 export interface StationJSONData {