diff --git a/src/cairo_widget.cc b/src/cairo_widget.cc
index 26dff27..1a25e3a 100644
--- a/src/cairo_widget.cc
+++ b/src/cairo_widget.cc
@@ -57,7 +57,7 @@ CairoWidget::set_scaling_mode(CairoWidget::scaling_mode scaling)
 }
 
 CairoWidget::scaling_mode
-CairoWidget::get_scaling_mode()
+CairoWidget::get_scaling_mode() const
 {
   return _scaling_mode;
 }
@@ -253,11 +253,6 @@ CairoWidget::calc_scale_factors()
   }
 }
 
-bool
-CairoWidget::on_button_press_event(GdkEventButton* event)
-{
-  return false;
-}
 
 void
 CairoWidget::redraw()
diff --git a/src/cairo_widget.hh b/src/cairo_widget.hh
index 4ed89c7..2299835 100644
--- a/src/cairo_widget.hh
+++ b/src/cairo_widget.hh
@@ -233,12 +233,12 @@ namespace sgpem
 
     /**
      * \brief Calculated width of drawing.
-     *;
+     */
     mutable size_t      _draw_w;
 
     /**
      * \brief Calculated height of drawing.
-     *;
+     */
     mutable size_t      _draw_h;
 
   private: