diff --git a/qt/about.cpp b/qt/about.cpp
index 629475d328..a477ea5dfc 100644
--- a/qt/about.cpp
+++ b/qt/about.cpp
@@ -12,7 +12,7 @@
 #include <QtGui/QLabel>
 
 AboutDialog::AboutDialog(QWidget * parent)
-  : QDialog(parent)
+  : QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint)
 {
   QIcon icon(":logo.png");
   setWindowIcon(icon);
diff --git a/qt/info_dialog.cpp b/qt/info_dialog.cpp
index 92a948882a..a93b83ee86 100644
--- a/qt/info_dialog.cpp
+++ b/qt/info_dialog.cpp
@@ -11,7 +11,7 @@ namespace qt
 {
   InfoDialog::InfoDialog(QString const & title, QString const & text, QWidget * parent,
                          QStringList const & buttons)
-  : QDialog(parent)
+  : QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint)
   {
     QIcon icon(":logo.png");
     setWindowIcon(icon);
diff --git a/qt/preferences_dialog.cpp b/qt/preferences_dialog.cpp
index 38d35630a0..89d4e8f2e5 100644
--- a/qt/preferences_dialog.cpp
+++ b/qt/preferences_dialog.cpp
@@ -7,7 +7,7 @@
 namespace qt
 {
   PreferencesDialog::PreferencesDialog(QWidget * parent, bool & autoUpdatesEnabled)
-  : QDialog(parent), m_autoUpdatesEnabled(autoUpdatesEnabled)
+  : QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint), m_autoUpdatesEnabled(autoUpdatesEnabled)
   {
     QIcon icon(":logo.png");
     setWindowIcon(icon);
diff --git a/qt/update_dialog.cpp b/qt/update_dialog.cpp
index ebe7b08243..479e7b33c5 100644
--- a/qt/update_dialog.cpp
+++ b/qt/update_dialog.cpp
@@ -56,7 +56,7 @@ namespace qt
 ////////////////////////////////////////////////////////////////////////////////
 
   UpdateDialog::UpdateDialog(QWidget * parent, Storage & storage)
-    : QDialog(parent), m_storage(storage)
+    : QDialog(parent, Qt::WindowTitleHint | Qt::WindowSystemMenuHint), m_storage(storage)
   {
     setWindowModality(Qt::WindowModal);