diff --git a/src/main/java/org/ntlab/nemophila/resources/accounts/RequestedRest.java b/src/main/java/org/ntlab/nemophila/resources/accounts/RequestedRest.java
index 6d8f9cb..3b0043d 100644
--- a/src/main/java/org/ntlab/nemophila/resources/accounts/RequestedRest.java
+++ b/src/main/java/org/ntlab/nemophila/resources/accounts/RequestedRest.java
@@ -6,6 +6,7 @@
 import org.springframework.stereotype.Component;
 
 import javax.ws.rs.*;
+import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -16,6 +17,7 @@
 
     @GET
     @Path("/{uid}/requested")
+    @Produces(MediaType.APPLICATION_JSON)
     public Collection<String> getRequested(@PathParam("uid") String uid) {
         //uidが申請を受けているidの一覧を返す
         AccountManager am = AccountManager.getInstance();