2 files changed, 6 insertions, 6 deletions
diff --git a/src/live_effects/parameter/bool.cpp b/src/live_effects/parameter/bool.cpp
index af3449dff..f0d409955 100644
--- a/src/live_effects/parameter/bool.cpp
+++ b/src/live_effects/parameter/bool.cpp
@@ -26,7 +26,7 @@ namespace LivePathEffect {
 BoolParam::BoolParam( const Glib::ustring& label, const Glib::ustring& tip,
                       const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
                       Effect* effect, bool default_value )
-    : Parameter(label, tip, key, wr, effect), defvalue(default_value)
+    : Parameter(label, tip, key, wr, effect), defvalue(default_value), value(default_value)
 {
     checkwdg = NULL;
 }
diff --git a/src/live_effects/parameter/bool.h b/src/live_effects/parameter/bool.h
index 24c10fb3b..0a29a9439 100644
--- a/src/live_effects/parameter/bool.h
+++ b/src/live_effects/parameter/bool.h
@@ -29,15 +29,15 @@ public:
                Inkscape::UI::Widget::Registry* wr,
                Effect* effect,
                bool default_value = false);
-    ~BoolParam();
+    virtual ~BoolParam();
 
-    Gtk::Widget * param_getWidget();
+    virtual Gtk::Widget * param_getWidget();
 
-    bool param_readSVGValue(const gchar * strvalue);
-    gchar * param_writeSVGValue() const;
+    virtual bool param_readSVGValue(const gchar * strvalue);
+    virtual gchar * param_writeSVGValue() const;
 
     void param_setValue(bool newvalue);
-    void param_set_default();
+    virtual void param_set_default();
 
     bool get_value() { return value; };