diff --git a/src/mkvtoolnix-gui/merge/input.cpp b/src/mkvtoolnix-gui/merge/input.cpp
index b245bb426..2a6b7a142 100644
--- a/src/mkvtoolnix-gui/merge/input.cpp
+++ b/src/mkvtoolnix-gui/merge/input.cpp
@@ -788,6 +788,11 @@ Tab::addOrAppendFiles(bool append) {
     addOrAppendFiles(append, fileNames, selectedSourceFile());
 }
 
+void
+Tab::addFiles(QStringList const &fileNames) {
+  addOrAppendFiles(false, fileNames, QModelIndex{});
+}
+
 void
 Tab::addOrAppendFiles(bool append,
                       QStringList const &fileNames,
diff --git a/src/mkvtoolnix-gui/merge/tab.h b/src/mkvtoolnix-gui/merge/tab.h
index ad21fb28a..5fbe48a74 100644
--- a/src/mkvtoolnix-gui/merge/tab.h
+++ b/src/mkvtoolnix-gui/merge/tab.h
@@ -63,6 +63,7 @@ public:
   virtual QString title() const;
   virtual void load(QString const &fileName);
   virtual void cloneConfig(MuxConfig const &config);
+  virtual void addFiles(QStringList const &fileNames);
 
 signals:
   void removeThisTab();
diff --git a/src/mkvtoolnix-gui/merge/tool.cpp b/src/mkvtoolnix-gui/merge/tool.cpp
index 642c91de8..af82e9f69 100644
--- a/src/mkvtoolnix-gui/merge/tool.cpp
+++ b/src/mkvtoolnix-gui/merge/tool.cpp
@@ -329,7 +329,7 @@ Tool::addMultipleFilesToNewSettings(QStringList const &fileNames,
     auto tab = currentTab();
     Q_ASSERT(!!tab);
 
-    tab->addFilesToBeAddedOrAppendedDelayed(fileNamesToAdd);
+    tab->addFiles(fileNamesToAdd);
   }
 }