diff --git a/custom/src/main/java/org/gitnex/tea4j/v2/apis/custom/CustomApi.java b/custom/src/main/java/org/gitnex/tea4j/v2/apis/custom/CustomApi.java
index 0f6b980..5495e13 100644
--- a/custom/src/main/java/org/gitnex/tea4j/v2/apis/custom/CustomApi.java
+++ b/custom/src/main/java/org/gitnex/tea4j/v2/apis/custom/CustomApi.java
@@ -1,6 +1,7 @@
 package org.gitnex.tea4j.v2.apis.custom;
 
 import org.gitnex.tea4j.v2.models.*;
+import okhttp3.ResponseBody;
 import retrofit2.Call;
 import retrofit2.http.*;
 
@@ -107,7 +108,7 @@ public interface CustomApi {
    * @param filepath filepath of the file to get (required)
    * @param ref The name of the commit/branch/tag. Default the repository’s default branch (usually
    *     master) (optional)
-   * @return Call<Void>;
+   * @return Call<ResponseBody>;
    */
   @GET("repos/{owner}/{repo}/raw/{filepath}")
   Call<ResponseBody> repoGetRawFile(
@@ -124,7 +125,7 @@ public interface CustomApi {
    * @param filepath filepath of the file to get (required)
    * @param ref The name of the commit/branch/tag. Default the repository’s default branch (usually
    *     master) (optional)
-   * @return Call<Void>;
+   * @return Call<ResponseBody>;
    */
   @GET("repos/{owner}/{repo}/media/{filepath}")
   Call<ResponseBody> repoGetRawFileOrLFS(