diff --git a/app/src/main/java/org/linphone/chat/GroupInfoFragment.java b/app/src/main/java/org/linphone/chat/GroupInfoFragment.java
index 348b5a83b..2a5a08174 100644
--- a/app/src/main/java/org/linphone/chat/GroupInfoFragment.java
+++ b/app/src/main/java/org/linphone/chat/GroupInfoFragment.java
@@ -328,9 +328,14 @@ public class GroupInfoFragment extends Fragment implements ChatRoomListener {
                                                     false,
                                                     mIsEncryptionEnabled);
                             mTempChatRoom.addListener(mChatRoomCreationListener);
+
+                            int i = 0;
+                            Address[] participantsToAdd = new Address[mParticipants.size()];
                             for (ContactAddress ca : mParticipants) {
-                                mTempChatRoom.addParticipant(ca.getAddress());
+                                participantsToAdd[i] = ca.getAddress();
+                                i++;
                             }
+                            mTempChatRoom.addParticipants(participantsToAdd);
                         } else {
                             // Subject
                             String newSubject = mSubjectField.getText().toString();
diff --git a/app/src/main/java/org/linphone/history/HistoryDetailFragment.java b/app/src/main/java/org/linphone/history/HistoryDetailFragment.java
index e6d85ea6e..976fc53ae 100644
--- a/app/src/main/java/org/linphone/history/HistoryDetailFragment.java
+++ b/app/src/main/java/org/linphone/history/HistoryDetailFragment.java
@@ -235,7 +235,9 @@ public class HistoryDetailFragment extends Fragment implements OnClickListener {
                             lc.createClientGroupChatRoom(
                                     getString(R.string.dummy_group_chat_subject), true);
                     mChatRoom.addListener(mChatRoomCreationListener);
-                    mChatRoom.addParticipant(participant);
+                    Address participants[] = new Address[1];
+                    participants[0] = participant;
+                    mChatRoom.addParticipants(participants);
                 } else {
                     room = lc.getChatRoom(participant);
                     LinphoneActivity.instance()