diff --git a/src/frontends/qt4/GuiLabel.cpp b/src/frontends/qt4/GuiLabel.cpp
index 8a4a7c26fa..8c46909f9e 100644
--- a/src/frontends/qt4/GuiLabel.cpp
+++ b/src/frontends/qt4/GuiLabel.cpp
@@ -79,6 +79,13 @@ void GuiLabel::applyView()
 }
 
 
+
+void GuiLabel::enableView(bool enable)
+{
+	keywordED->setEnabled(enable);
+}
+
+
 bool GuiLabel::isValid()
 {
 	return !keywordED->text().isEmpty();
diff --git a/src/frontends/qt4/GuiLabel.h b/src/frontends/qt4/GuiLabel.h
index ef59bfd530..64a9a0e8a1 100644
--- a/src/frontends/qt4/GuiLabel.h
+++ b/src/frontends/qt4/GuiLabel.h
@@ -47,6 +47,10 @@ private:
 	void dispatchParams();
 	///
 	bool isBufferDependent() const { return true; }
+	///
+	void enableView(bool enable);
+	///
+	bool canApply() const { return true; }
 
 private:
 	///