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;