diff --git a/coreapi/help/filetransfer.c b/coreapi/help/filetransfer.c
index 01f6f3c2a..035a05597 100644
--- a/coreapi/help/filetransfer.c
+++ b/coreapi/help/filetransfer.c
@@ -48,11 +48,11 @@ static void stop(int signum){
 /**
  * function invoked to report file transfer progress.
  * */
-static void file_transfer_progress_indication(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, size_t progress) {
+static void file_transfer_progress_indication(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, size_t offset, size_t total) {
 	const LinphoneAddress* from_address = linphone_chat_message_get_from(message);
 	const LinphoneAddress* to_address = linphone_chat_message_get_to(message);
 	char *address = linphone_chat_message_is_outgoing(message)?linphone_address_as_string(to_address):linphone_address_as_string(from_address);
-	printf(" File transfer  [%d%%] %s of type [%s/%s] %s [%s] \n", (int)progress
+	printf(" File transfer  [%d%%] %s of type [%s/%s] %s [%s] \n", (int)((offset *100)/total)
 																	,(linphone_chat_message_is_outgoing(message)?"sent":"received")
 																	, content->type
 																	, content->subtype
@@ -133,7 +133,7 @@ static void message_received(LinphoneCore *lc, LinphoneChatRoom *cr, LinphoneCha
 	const LinphoneContent *file_transfer_info = linphone_chat_message_get_file_transfer_information(msg);
 	printf ("Do you really want to download %s (size %ld)?[Y/n]\nOk, let's go\n", file_transfer_info->name, (long int)file_transfer_info->size);
 
-	linphone_chat_message_start_file_download(msg, linphone_file_transfer_state_changed);
+	linphone_chat_message_start_file_download(msg, linphone_file_transfer_state_changed, NULL);
 
 }
 
diff --git a/tester/liblinphone_tester.h b/tester/liblinphone_tester.h
index eda851698..18990f313 100644
--- a/tester/liblinphone_tester.h
+++ b/tester/liblinphone_tester.h
@@ -226,7 +226,7 @@ void text_message_received(LinphoneCore *lc, LinphoneChatRoom *room, const Linph
 void message_received(LinphoneCore *lc, LinphoneChatRoom *room, LinphoneChatMessage* message);
 void file_transfer_received(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, const char* buff, size_t size);
 void file_transfer_send(LinphoneCore *lc, LinphoneChatMessage *message,  const LinphoneContent* content, char* buff, size_t* size);
-void file_transfer_progress_indication(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, size_t progress);
+void file_transfer_progress_indication(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, size_t offset, size_t total);
 void is_composing_received(LinphoneCore *lc, LinphoneChatRoom *room);
 void info_message_received(LinphoneCore *lc, LinphoneCall *call, const LinphoneInfoMessage *msg);
 void new_subscription_requested(LinphoneCore *lc, LinphoneFriend *lf, const char *url);
diff --git a/tester/message_tester.c b/tester/message_tester.c
index 21ef387ae..ff6d16cc9 100644
--- a/tester/message_tester.c
+++ b/tester/message_tester.c
@@ -116,12 +116,13 @@ void file_transfer_send(LinphoneCore *lc, LinphoneChatMessage *message,  const L
 /**
  * function invoked to report file transfer progress.
  * */
-void file_transfer_progress_indication(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, size_t progress) {
+void file_transfer_progress_indication(LinphoneCore *lc, LinphoneChatMessage *message, const LinphoneContent* content, size_t offset, size_t total) {
 	const LinphoneAddress* from_address = linphone_chat_message_get_from(message);
 	const LinphoneAddress* to_address = linphone_chat_message_get_to(message);
 	char *address = linphone_chat_message_is_outgoing(message)?linphone_address_as_string(to_address):linphone_address_as_string(from_address);
 	stats* counters = get_stats(lc);
-	ms_message(" File transfer  [%d%%] %s of type [%s/%s] %s [%s] \n", (int)progress
+	int progress = (int)((offset * 100)/total);
+	ms_message(" File transfer  [%d%%] %s of type [%s/%s] %s [%s] \n", progress
 																	,(linphone_chat_message_is_outgoing(message)?"sent":"received")
 																	, content->type
 																	, content->subtype
@@ -431,7 +432,7 @@ static void file_transfer_message(void) {
 	linphone_chat_room_send_message2(chat_room,message,liblinphone_tester_chat_message_state_change,pauline->lc);
 	CU_ASSERT_TRUE(wait_for(pauline->lc,marie->lc,&marie->stat.number_of_LinphoneMessageReceivedWithFile,1));
 	if (marie->stat.last_received_chat_message ) {
-		linphone_chat_message_start_file_download(marie->stat.last_received_chat_message, liblinphone_tester_chat_message_state_change);
+		linphone_chat_message_start_file_download(marie->stat.last_received_chat_message, liblinphone_tester_chat_message_state_change, NULL);
 	}
 	CU_ASSERT_TRUE(wait_for(pauline->lc,marie->lc,&marie->stat.number_of_LinphoneMessageExtBodyReceived,1));
 
@@ -486,7 +487,7 @@ static void small_file_transfer_message(void) {
 	linphone_chat_room_send_message2(chat_room,message,liblinphone_tester_chat_message_state_change,pauline->lc);
 	CU_ASSERT_TRUE(wait_for(pauline->lc,marie->lc,&marie->stat.number_of_LinphoneMessageReceivedWithFile,1));
 	if (marie->stat.last_received_chat_message ) {
-		linphone_chat_message_start_file_download(marie->stat.last_received_chat_message, liblinphone_tester_chat_message_state_change);
+		linphone_chat_message_start_file_download(marie->stat.last_received_chat_message, liblinphone_tester_chat_message_state_change, NULL);
 	}
 	CU_ASSERT_TRUE(wait_for(pauline->lc,marie->lc,&marie->stat.number_of_LinphoneMessageExtBodyReceived,1));