diff --git a/src/widget/contentdialog.cpp b/src/widget/contentdialog.cpp
index da34e9e30..bf9f92f0c 100644
--- a/src/widget/contentdialog.cpp
+++ b/src/widget/contentdialog.cpp
@@ -155,7 +155,7 @@ FriendWidget* ContentDialog::addFriend(std::shared_ptr<FriendChatroom> chatroom,
 {
     const auto compact = Settings::getInstance().getCompactLayout();
     auto frnd = chatroom->getFriend();
-    auto friendPk = frnd->getPublicKey();
+    const auto& friendPk = frnd->getPublicKey();
     auto friendWidget = new FriendWidget(chatroom, compact);
     emit connectFriendWidget(*friendWidget);
     contactWidgets[friendPk] = friendWidget;
@@ -176,7 +176,7 @@ FriendWidget* ContentDialog::addFriend(std::shared_ptr<FriendChatroom> chatroom,
 GroupWidget* ContentDialog::addGroup(std::shared_ptr<GroupChatroom> chatroom, GenericChatForm* form)
 {
     const auto g = chatroom->getGroup();
-    const auto groupId = g->getPersistentId();
+    const auto& groupId = g->getPersistentId();
     const auto compact = Settings::getInstance().getCompactLayout();
     auto groupWidget = new GroupWidget(chatroom, compact);
     contactWidgets[groupId] = groupWidget;
diff --git a/src/widget/contentdialogmanager.cpp b/src/widget/contentdialogmanager.cpp
index c6546767c..d79334642 100644
--- a/src/widget/contentdialogmanager.cpp
+++ b/src/widget/contentdialogmanager.cpp
@@ -63,7 +63,7 @@ FriendWidget* ContentDialogManager::addFriendToDialog(ContentDialog* dialog,
                                                       GenericChatForm* form)
 {
     auto friendWidget = dialog->addFriend(chatroom, form);
-    const auto friendPk = friendWidget->getFriend()->getPublicKey();
+    const auto& friendPk = friendWidget->getFriend()->getPublicKey();
 
     ContentDialog* lastDialog = getFriendDialog(friendPk);
     if (lastDialog) {