diff --git a/lib/TerminalDisplay.cpp b/lib/TerminalDisplay.cpp
index c5997c7..654cce0 100644
--- a/lib/TerminalDisplay.cpp
+++ b/lib/TerminalDisplay.cpp
@@ -2450,8 +2450,11 @@ void TerminalDisplay::setWordCharacters(const QString& wc)
 
 void TerminalDisplay::setUsesMouse(bool on)
 {
-  _mouseMarks = on;
-  setCursor( _mouseMarks ? Qt::IBeamCursor : Qt::ArrowCursor );
+    if (_mouseMarks != on) {
+        _mouseMarks = on;
+        setCursor( _mouseMarks ? Qt::IBeamCursor : Qt::ArrowCursor );
+        emit usesMouseChanged();
+    }
 }
 bool TerminalDisplay::usesMouse() const
 {
diff --git a/lib/TerminalDisplay.h b/lib/TerminalDisplay.h
index c32d799..b298010 100644
--- a/lib/TerminalDisplay.h
+++ b/lib/TerminalDisplay.h
@@ -571,6 +571,7 @@ signals:
 	void termLostFocus();
 
     void notifyBell(const QString&);
+    void usesMouseChanged();
 
 protected:
     virtual bool event( QEvent * );