diff --git a/src/plugins/coreplugin/dialogs/readonlyfilesdialog.cpp b/src/plugins/coreplugin/dialogs/readonlyfilesdialog.cpp
index 5f7ecedd231..2b7b054a8d0 100644
--- a/src/plugins/coreplugin/dialogs/readonlyfilesdialog.cpp
+++ b/src/plugins/coreplugin/dialogs/readonlyfilesdialog.cpp
@@ -143,6 +143,7 @@ ReadOnlyFilesDialog::ReadOnlyFilesDialog(const QList<QString> &fileNames, QWidge
     : QDialog(parent)
     , d(new ReadOnlyFilesDialogPrivate(this))
 {
+    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
     d->initDialog(fileNames);
 }