diff --git a/cdistributoreditdialog.cpp b/cdistributoreditdialog.cpp
index f901022..e6cd0f1 100644
--- a/cdistributoreditdialog.cpp
+++ b/cdistributoreditdialog.cpp
@@ -12,6 +12,7 @@
 #include <QDir>
 #include <QFile>
 #include <QBuffer>
+#include <QIntValidator>
 
 #include <QDebug>
 
diff --git a/cpartlistitem.cpp b/cpartlistitem.cpp
index 801134f..888423b 100644
--- a/cpartlistitem.cpp
+++ b/cpartlistitem.cpp
@@ -1,5 +1,7 @@
 #include "cpartlistitem.h"
 
+#include <QObject>
+
 
 cPartlistItem::cPartlistItem() :
 	m_id(-1),
diff --git a/cpartwindow.cpp b/cpartwindow.cpp
index af83a9d..bb2f9f6 100644
--- a/cpartwindow.cpp
+++ b/cpartwindow.cpp
@@ -164,18 +164,22 @@ void cPartWindow::deletePart()
 
 void cPartWindow::onAdd()
 {
-	QStandardItem*		lpItem			= m_lpPartListModel->itemFromIndex(ui->m_lpPartList->selectionModel()->selectedIndexes().at(0));
 	QString				szGroup;
 
-	if(lpItem)
+	if(ui->m_lpPartList->selectionModel()->selectedIndexes().count())
 	{
-		QStandardItem*	lpRoot;
+		QStandardItem*		lpItem			= m_lpPartListModel->itemFromIndex(ui->m_lpPartList->selectionModel()->selectedIndexes().at(0));
 
-		lpRoot	= lpItem->parent();
-		if(!lpRoot)
-			szGroup	= lpItem->text();
-		else
-			szGroup	= lpRoot->text();
+		if(lpItem)
+		{
+			QStandardItem*	lpRoot;
+
+			lpRoot	= lpItem->parent();
+			if(!lpRoot)
+				szGroup	= lpItem->text();
+			else
+				szGroup	= lpRoot->text();
+		}
 	}
 
 	cPartEditDialog*	lpDialog	= new cPartEditDialog(this);
@@ -191,8 +195,8 @@ void cPartWindow::onAdd()
 
 	delete lpDialog;
 
-	partGroupChanged(0);
-	partChanged(0);
+	emit partGroupChanged(0);
+	emit partChanged(0);
 	showPartList(id);
 }