diff --git a/CMakeLists.txt b/CMakeLists.txt
index 35268b756..290187332 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,7 @@ else(APPLE)
 endif(APPLE)
 
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+set(CMAKE_OSX_SYSROOT "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk")
 
 # rpath resolve.
 #set(CMAKE_BUILD_WITH_INSTALL_RPATH YES)     // would cause wheelEvent problem on centos/fedora when compiled with qt5
diff --git a/src/WizConsoleDialog.cpp b/src/WizConsoleDialog.cpp
index 9ab1ba1b6..e36cd05b4 100755
--- a/src/WizConsoleDialog.cpp
+++ b/src/WizConsoleDialog.cpp
@@ -62,16 +62,6 @@ WizConsoleDialog::~WizConsoleDialog()
 {
 }
 
-void WizConsoleDialog::showEvent(QShowEvent *event)
-{
-    QScrollBar* vScroll = m_ui->editConsole->verticalScrollBar();
-    vScroll->setValue(vScroll->maximum());
-
-    move(parentWidget()->geometry().center() - rect().center());
-
-    QDialog::showEvent(event);
-}
-
 void WizConsoleDialog::insertLog(const QString& text)
 {
     QTextCursor cursor = m_ui->editConsole->textCursor();
diff --git a/src/WizConsoleDialog.h b/src/WizConsoleDialog.h
index f9e422795..abcfaed38 100755
--- a/src/WizConsoleDialog.h
+++ b/src/WizConsoleDialog.h
@@ -18,9 +18,6 @@ class WizConsoleDialog: public QDialog
     WizConsoleDialog(WizExplorerApp& app, QWidget* parent = 0);
     ~WizConsoleDialog();
 
-protected:
-    virtual void showEvent(QShowEvent *event);
-
 private:
     WizExplorerApp& m_app;
     Ui::WizConsoleDialog* m_ui;