diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 90a43fb001a9438fa064513eee648576685630af..8ec6a2bb8f7f975b99055b0c01f875d86965290a 100755
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -639,7 +639,7 @@ bool MainWindow::addPedestrianGroup(int groupID,QString fileName)
         fileName = QFileDialog::getOpenFileName(this,
                                                 "Select the file containing the data to visualize",
                                                 QDir::currentPath(),
-                                                "Geometry or trajectory files (*.xml);;All Files (*.*)");
+                                                "JuPedSim Files (*.xml, *.txt);;All Files (*.*)");
 
     //the action was cancelled
     if (fileName.isNull()) {