diff --git a/src/plugins/coreplugin/documentmanager.cpp b/src/plugins/coreplugin/documentmanager.cpp
index 9b7cc4eedeb9ab5f132dc9101386fa82c5e88c8a..6ba6d61ca245d85354a220ab79c3de5ed254fb39 100644
--- a/src/plugins/coreplugin/documentmanager.cpp
+++ b/src/plugins/coreplugin/documentmanager.cpp
@@ -708,7 +708,7 @@ QString DocumentManager::getSaveFileName(const QString &title, const QString &pa
             if (QFile::exists(fileName)) {
                 if (QMessageBox::warning(ICore::dialogParent(), tr("Overwrite?"),
                     tr("An item named \"%1\" already exists at this location. "
-                       "Do you want to overwrite it?").arg(fileName),
+                       "Do you want to overwrite it?").arg(QDir::toNativeSeparators(fileName)),
                     QMessageBox::Yes | QMessageBox::No) == QMessageBox::No) {
                     repeat = true;
                 }