diff --git a/examples/Parametric/sign.scad b/examples/Parametric/sign.scad
index 735e434d..8f8be9c2 100644
--- a/examples/Parametric/sign.scad
+++ b/examples/Parametric/sign.scad
@@ -1,10 +1,10 @@
 @Description("The resolution of the curves. Higher values give smoother curves but may increase the model render time.")
-@Parameter([10, 20, 30, 50, 100])
+@Parameter()
 resolution = 30;
 
 @Description("The horizontal radius of the outer ellipse of the sign.")
-@Parameter([60 : 200])
-radius = 80;
+@Parameter([60: 200])
+radius = 100;
 
 @Parameter([1 : 10])
 @Description("Total height of the sign")
diff --git a/src/ParameterEntryWidget.cc b/src/ParameterEntryWidget.cc
index 43474a80..24a4473d 100644
--- a/src/ParameterEntryWidget.cc
+++ b/src/ParameterEntryWidget.cc
@@ -121,10 +121,6 @@ bool ParameterEntryWidget::isDefaultValue()
     return object.value == object.defaultValue;
 }
 
-void ParameterEntryWidget::applyParameter(Assignment *assignment)
-{
-    object.applyParameter(assignment);
-}
 
 void ParameterEntryWidget::setAssignment(Context *ctx, const Assignment *assignment, const ValuePtr defaultValue)
 {
diff --git a/src/ParameterEntryWidget.h b/src/ParameterEntryWidget.h
index 29137c87..1f99165e 100644
--- a/src/ParameterEntryWidget.h
+++ b/src/ParameterEntryWidget.h
@@ -35,16 +35,16 @@ class ParameterEntryWidget : public QWidget, public Ui::ParameterEntryWidget
 {
 	Q_OBJECT
 
-        ParameterObject object;
+
 
 public:
+    ParameterObject object;
 	ParameterEntryWidget(QWidget *parent = 0);
 	virtual ~ParameterEntryWidget();
 
-        ValuePtr getValue();
-        bool isDefaultValue();
-        void setAssignment(class Context *context, const class Assignment *assignment, const ValuePtr defaultValue);
-        void applyParameter(class Assignment *assignment);
+    ValuePtr getValue();
+    bool isDefaultValue();
+    void setAssignment(class Context *context, const class Assignment *assignment, const ValuePtr defaultValue);
 
 protected slots:
         void on_comboBox_activated(int);
diff --git a/src/ParameterWidget.cc b/src/ParameterWidget.cc
index 529d7ac7..ea9f828f 100644
--- a/src/ParameterWidget.cc
+++ b/src/ParameterWidget.cc
@@ -106,7 +106,7 @@ void ParameterWidget::applyParameters(FileModule *fileModule)
 			continue;
 		}
 
-		(*entry).second->applyParameter(&(*it));
+        (*entry).second->applyParameter(&(*it));
 	}
 }
 
@@ -134,8 +134,8 @@ void ParameterWidget::setParameters(const Module *module)
 		ParameterEntryWidget *entry = new ParameterEntryWidget();
 		entry->setAssignment(&ctx, &assignment, defaultValue);
 		connect(entry, SIGNAL(changed()), this, SLOT(onValueChanged()));
-		addEntry(entry);
-		entries[assignment.first] = entry;
+        addEntry(entry);
+        entries[assignment.first] = &(entry->object);
 
 	}
 	end();
diff --git a/src/ParameterWidget.h b/src/ParameterWidget.h
index e0eb3395..b9d5e4e4 100644
--- a/src/ParameterWidget.h
+++ b/src/ParameterWidget.h
@@ -28,13 +28,14 @@
 #include <QTimer>
 
 #include "qtgettext.h"
+#include "parameterobject.h"
 #include "ui_ParameterWidget.h"
 
 class ParameterWidget : public QWidget, public Ui::ParameterWidget
 {
 	Q_OBJECT
 
-        typedef std::map<std::string, class ParameterEntryWidget *> entry_map_t;
+        typedef std::map<std::string, class ParameterObject *> entry_map_t;
 
         QTimer autoPreviewTimer;
         entry_map_t entries;