diff --git a/redux-logger/redux-logger-tests.ts b/redux-logger/redux-logger-tests.ts
index b5dd3232f..02b1b47a7 100644
--- a/redux-logger/redux-logger-tests.ts
+++ b/redux-logger/redux-logger-tests.ts
@@ -13,7 +13,7 @@ let loggerWithOpts = createLogger({
   logger: console,
   predicate: (getState, action) => true,
   timestamp: true,
-  transformer: state => state
+  stateTransformer: state => state
 });
 
 let createStoreWithMiddleware = applyMiddleware(
diff --git a/redux-logger/redux-logger.d.ts b/redux-logger/redux-logger.d.ts
index 7f9cab9d7..b0459e536 100644
--- a/redux-logger/redux-logger.d.ts
+++ b/redux-logger/redux-logger.d.ts
@@ -15,7 +15,7 @@ declare module 'redux-logger' {
     logger?: any;
     predicate?: (getState: Function, action: any) => boolean;
     timestamp?: boolean;
-    transformer?: (state:any) => any;
+    stateTransformer?: (state: any) => any;
   }
 
   export default function createLogger(options?: ReduxLoggerOptions): Redux.Middleware;