diff --git a/src/gui/MainWindow.cpp b/src/gui/MainWindow.cpp
index f9367847..8ed6bcbf 100644
--- a/src/gui/MainWindow.cpp
+++ b/src/gui/MainWindow.cpp
@@ -519,6 +519,11 @@ void MainWindow::updateWindowTitle()
         windowTitle = BaseWindowTitle;
     } else {
         windowTitle = QString("%1 - %2").arg(customWindowTitlePart, BaseWindowTitle);
+        if (customWindowTitlePart.right(1) == "*") {
+            setWindowModified(true);
+        } else {
+            setWindowModified(false);
+        }
     }
 
     setWindowTitle(windowTitle);