diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -87,6 +87,7 @@ add_executable(${PROGRAM_NAME} WIN32
   commandwidget.cpp
   commandedit.cpp
   dataformatpanel.cpp
+  tooltipfilter.cpp
   ${UI_FILES}
   ${RES_FILES}
   misc/windows_icon.rc
diff --git a/main.cpp b/main.cpp
--- a/main.cpp
+++ b/main.cpp
@@ -17,12 +17,14 @@
   along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#include "mainwindow.h"
 #include <QApplication>
 #include <QtGlobal>
 
+#include "mainwindow.h"
+#include "tooltipfilter.h"
 #include "version.h"
 
+
 MainWindow* pMainWindow;
 
 void messageHandler(QtMsgType type, const QMessageLogContext &context,
@@ -40,6 +42,9 @@ int main(int argc, char *argv[])
 
     qInstallMessageHandler(messageHandler);
 
+    ToolTipFilter ttf;
+    a.installEventFilter(&ttf);
+
     // log application information
     qDebug() << "SerialPlot" << VERSION_STRING;
     qDebug() << "Revision" << VERSION_REVISION;
diff --git a/tooltipfilter.cpp b/tooltipfilter.cpp
new file mode 100644
--- /dev/null
+++ b/tooltipfilter.cpp
@@ -0,0 +1,54 @@
+/*
+  Copyright © 2015 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <QToolButton>
+#include <QAction>
+#include <QKeySequence>
+#include <QHelpEvent>
+#include <QToolTip>
+
+#include "tooltipfilter.h"
+
+bool ToolTipFilter::eventFilter(QObject *obj, QEvent *ev)
+{
+    if (ev->type() == QEvent::ToolTip && obj->inherits("QToolButton"))
+    {
+        // prepare tooltip message
+        QToolButton* toolButton = (QToolButton*) obj;
+        QAction* action = toolButton->defaultAction();
+        QString toolTip = action->toolTip();
+
+        if (toolTip.isEmpty()) return false;
+
+        QKeySequence keys = action->shortcut();
+        if (!keys.isEmpty())
+        {
+            toolTip += QString(" <b>[") + keys.toString() + "]</b>";
+        }
+
+        // show tooltip message
+        QHelpEvent *helpEvent = static_cast<QHelpEvent *>(ev);
+        QToolTip::showText(helpEvent->globalPos(), toolTip);
+        return true;
+    }
+    else
+    {
+        return QObject::eventFilter(obj, ev);
+    }
+}
diff --git a/tooltipfilter.h b/tooltipfilter.h
new file mode 100644
--- /dev/null
+++ b/tooltipfilter.h
@@ -0,0 +1,32 @@
+/*
+  Copyright © 2015 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef TOOLTIPFILTER_H
+#define TOOLTIPFILTER_H
+
+#include <QObject>
+#include <QEvent>
+
+class ToolTipFilter : public QObject
+{
+protected:
+    bool eventFilter(QObject *obj, QEvent *ev);
+};
+
+#endif /* TOOLTIPFILTER_H */