diff --git a/app/src/main/java/org/mian/gitnex/activities/FileDiffActivity.java b/app/src/main/java/org/mian/gitnex/activities/FileDiffActivity.java
index ce22593d..f62891f3 100644
--- a/app/src/main/java/org/mian/gitnex/activities/FileDiffActivity.java
+++ b/app/src/main/java/org/mian/gitnex/activities/FileDiffActivity.java
@@ -72,18 +72,18 @@ public class FileDiffActivity extends BaseActivity {
 
         mProgressBar.setVisibility(View.VISIBLE);
 
-        String fileDiffName = tinyDb.getString("issueNumber")+".diff";
+        String pullIndex = tinyDb.getString("issueNumber");
 
-        getFileContents(tinyDb.getString("instanceUrlWithProtocol"), repoOwner, repoName, fileDiffName);
+        getPullDiffContent(tinyDb.getString("instanceUrlWithProtocol"), repoOwner, repoName, pullIndex);
 
     }
 
-    private void getFileContents(String instanceUrl, String owner, String repo, String filename) {
+    private void getPullDiffContent(String instanceUrl, String owner, String repo, String filename) {
 
         Call<ResponseBody> call = RetrofitClient
                 .getInstance(instanceUrl, getApplicationContext())
-                .getApiInterface()
-                .getFileDiffContents(owner, repo, filename);
+                .getWebInterface()
+                .getPullDiffContent(owner, repo, filename);
 
         call.enqueue(new Callback<ResponseBody>() {
 
diff --git a/app/src/main/java/org/mian/gitnex/clients/RetrofitClient.java b/app/src/main/java/org/mian/gitnex/clients/RetrofitClient.java
index c127c63c..2c97127b 100644
--- a/app/src/main/java/org/mian/gitnex/clients/RetrofitClient.java
+++ b/app/src/main/java/org/mian/gitnex/clients/RetrofitClient.java
@@ -3,6 +3,7 @@ package org.mian.gitnex.clients;
 import android.content.Context;
 import androidx.annotation.NonNull;
 import org.mian.gitnex.interfaces.ApiInterface;
+import org.mian.gitnex.interfaces.WebInterface;
 import org.mian.gitnex.util.AppUtil;
 import java.io.File;
 import java.io.IOException;
@@ -69,4 +70,8 @@ public class RetrofitClient {
         return retrofit.create(ApiInterface.class);
     }
 
+    public WebInterface getWebInterface() {
+        return retrofit.create(WebInterface.class);
+    }
+
 }
diff --git a/app/src/main/java/org/mian/gitnex/interfaces/ApiInterface.java b/app/src/main/java/org/mian/gitnex/interfaces/ApiInterface.java
index 75cc3cdf..75aa0148 100644
--- a/app/src/main/java/org/mian/gitnex/interfaces/ApiInterface.java
+++ b/app/src/main/java/org/mian/gitnex/interfaces/ApiInterface.java
@@ -255,9 +255,6 @@ public interface ApiInterface {
     @GET("repos/{owner}/{repo}/pulls") // get repository pull requests
     Call<List<PullRequests>> getPullRequests(@Header("Authorization") String token, @Path("owner") String owner, @Path("repo") String repo, @Query("page") int page, @Query("state") String state, @Query("limit") int limit);
 
-    @GET("{owner}/{repo}/pulls/{filename}") // get pull diff file contents
-    Call<ResponseBody> getFileDiffContents(@Path("owner") String owner, @Path("repo") String repo, @Path("filename") String fileName);
-
     @POST("repos/{owner}/{repo}/pulls/{index}/merge") // merge a pull request
     Call<ResponseBody> mergePullRequest(@Header("Authorization") String token, @Path("owner") String ownerName, @Path("repo") String repoName, @Path("index") int index, @Body MergePullRequest jsonStr);
 
diff --git a/app/src/main/java/org/mian/gitnex/interfaces/WebInterface.java b/app/src/main/java/org/mian/gitnex/interfaces/WebInterface.java
new file mode 100644
index 00000000..21ace76e
--- /dev/null
+++ b/app/src/main/java/org/mian/gitnex/interfaces/WebInterface.java
@@ -0,0 +1,17 @@
+package org.mian.gitnex.interfaces;
+
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Path;
+
+/**
+ * Author M M Arif
+ */
+
+public interface WebInterface {
+
+    @GET("{owner}/{repo}/pulls/{index}.diff") // get pull diff file contents
+    Call<ResponseBody> getPullDiffContent(@Path("owner") String owner, @Path("repo") String repo, @Path("index") String pullIndex);
+
+}