diff --git a/.travis.yml b/.travis.yml
index 220f9327..9c9b30fa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: objective-c
-osx_image: xcode8.2
+osx_image: xcode8.3
 #xcode_project: OCCommunicationLib/ownCloud iOS library.xcodeproj
 #xcode_scheme: ownCloud iOS library
 #xcode_sdk: iphonesimulator
diff --git a/OCCommunicationLib/OCCommunicationLib/OCCommunication.h b/OCCommunicationLib/OCCommunicationLib/OCCommunication.h
index 2c9756bb..af15c95e 100644
--- a/OCCommunicationLib/OCCommunicationLib/OCCommunication.h
+++ b/OCCommunicationLib/OCCommunicationLib/OCCommunication.h
@@ -511,8 +511,8 @@ typedef enum {
  * @param sharedOCCommunication -> OCCommunication Singleton of communication to add the operation on the queue.
  */
 - (void) getUserDisplayNameOfServer:(NSString *)path onCommunication:(OCCommunication *)sharedOCCommunication
-                            success:(void(^)(NSHTTPURLResponse *response, NSString *displayName, NSString *redirectedServer))success
-                            failure:(void(^)(NSHTTPURLResponse *response, NSError *error, NSString *redirectedServer))failureRequest;
+                            success:(void(^)(NSHTTPURLResponse *response, NSString *serverUserId, NSString *displayName, NSString *redirectedServer))success
+                            failure:(void(^)(NSHTTPURLResponse *response, NSError *error, NSString *redirectedServer))failureRequest ;
 
 
 ///-----------------------------------
diff --git a/OCCommunicationLib/OCCommunicationLib/OCCommunication.m b/OCCommunicationLib/OCCommunicationLib/OCCommunication.m
index 184c770a..77ebf0a8 100644
--- a/OCCommunicationLib/OCCommunicationLib/OCCommunication.m
+++ b/OCCommunicationLib/OCCommunicationLib/OCCommunication.m
@@ -653,7 +653,7 @@ - (void) getUserDataOfServer:(NSString *)path onCommunication:(OCCommunication *
 ///-----------------------------------
 
 - (void) getUserDisplayNameOfServer:(NSString *)path onCommunication:(OCCommunication *)sharedOCCommunication
-                            success:(void(^)(NSHTTPURLResponse *response, NSString *displayName, NSString *redirectedServer))success
+                            success:(void(^)(NSHTTPURLResponse *response, NSString *serverUserId, NSString *displayName, NSString *redirectedServer))success
                             failure:(void(^)(NSHTTPURLResponse *response, NSError *error, NSString *redirectedServer))failureRequest {
     
     OCWebDAVClient *request = [OCWebDAVClient new];
@@ -664,6 +664,7 @@ - (void) getUserDisplayNameOfServer:(NSString *)path onCommunication:(OCCommunic
                                  
                                  NSError *jsonError = nil;
                                  NSString *displayName = @"";
+                                 NSString *serverUserId = @"";
                                  
                                  NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&jsonError];
                                  
@@ -677,13 +678,15 @@ - (void) getUserDisplayNameOfServer:(NSString *)path onCommunication:(OCCommunic
                                      NSDictionary *userDataDict = [ocsDict objectForKey:k_json_ocs_data];
                                      
                                      displayName = [userDataDict objectForKey:k_json_ocs_data_display_name];
+                                     
+                                      serverUserId = [userDataDict objectForKey:k_json_ocs_data_user_id];
                                  }
                                  
                                  for(NSString *key in [jsonDict allKeys]) {
                                      NSLog(@"%@",[jsonDict objectForKey:key]);
                                  }
                                  
-                                 success(response, displayName, request.redirectedServer);
+                                 success(response, serverUserId, displayName, request.redirectedServer);
                                  
                              } failure:^(NSHTTPURLResponse *response, NSData *responseData, NSError *error) {
                                  failureRequest(response,error, request.redirectedServer);
diff --git a/OCCommunicationLib/OCCommunicationLib/OCFrameworkConstants.h b/OCCommunicationLib/OCCommunicationLib/OCFrameworkConstants.h
index c640d781..a6d4dd5d 100644
--- a/OCCommunicationLib/OCCommunicationLib/OCFrameworkConstants.h
+++ b/OCCommunicationLib/OCCommunicationLib/OCFrameworkConstants.h
@@ -50,6 +50,7 @@
 #define k_json_ocs @"ocs"
 #define k_json_ocs_data @"data"
 #define k_json_ocs_data_display_name @"display-name"
+#define k_json_ocs_data_user_id @"id"
 
 //Url to access to Shared API to create
 #define k_url_acces_shared_api @"ocs/v1.php/apps/files_sharing/api/v1/shares"