diff --git a/src/main/java/com/loafle/overflow/rpc/api/RemoteImpl.java b/src/main/java/com/loafle/overflow/rpc/api/RemoteImpl.java
index 2135edc..77fb744 100644
--- a/src/main/java/com/loafle/overflow/rpc/api/RemoteImpl.java
+++ b/src/main/java/com/loafle/overflow/rpc/api/RemoteImpl.java
@@ -2,6 +2,7 @@ package com.loafle.overflow.rpc.api;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.googlecode.jsonrpc4j.spring.AutoJsonRpcServiceImpl;
+import com.loafle.overflow.crawler.Crawler;
 import com.loafle.overflow.rpc.model.Input;
 import com.loafle.overflow.rpc.model.Output;
 import org.springframework.stereotype.Service;