diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 9eaf5733e..dd270d231 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2006 Sean C. Rhea (srhea@srhea.net)
+ * Copyright (c) 2013 Mark Liversedge (liversedge@gmail.com)
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
@@ -243,7 +244,15 @@ MainWindow::MainWindow(const QDir &home) :
     QHBoxLayout *pp = new QHBoxLayout(acts);
     pp->setContentsMargins(0,0,0,0);
     pp->setContentsMargins(0,0,0,0);
-    pp->setSpacing(0);
+    pp->setSpacing(5);
+    sidebar = new QtMacButton(this, QtMacButton::TexturedRounded);
+    QPixmap *sidebarImg = new QPixmap(":images/mac/sidebar.png");
+    sidebar->setImage(sidebarImg);
+    sidebar->setMinimumSize(25, 25);
+    sidebar->setMaximumSize(25, 25);
+    sidebar->setToolTip("Sidebar");
+    sidebar->setSelected(true); // assume always start up with sidebar selected
+
     QtMacSegmentedButton *actbuttons = new QtMacSegmentedButton(3, acts);
     actbuttons->setWidth(115);
     actbuttons->setNoSelect();
@@ -261,12 +270,14 @@ MainWindow::MainWindow(const QDir &home) :
     viewsel->setContentsMargins(0,0,0,0);
     QHBoxLayout *pq = new QHBoxLayout(viewsel);
     pq->setContentsMargins(0,0,0,0);
-    pq->setSpacing(0);
+    pq->setSpacing(5);
+    pq->addWidget(sidebar);
     styleSelector = new QtMacSegmentedButton(2, viewsel);
     styleSelector->setWidth(80); // actually its 80 but we want a 30px space between is and the searchbox
     styleSelector->setImage(0, new QPixmap(":images/mac/tabbed.png"), 24);
     styleSelector->setImage(1, new QPixmap(":images/mac/tiled.png"), 24);
     pq->addWidget(styleSelector);
+    connect(sidebar, SIGNAL(clicked(bool)), this, SLOT(toggleSidebar()));
     connect(styleSelector, SIGNAL(clicked(int,bool)), this, SLOT(toggleStyle()));
 
     // setup Mac thetoolbar
@@ -1022,6 +1033,9 @@ void
 MainWindow::toggleSidebar()
 {
     showSidebar(!toolBox->isVisible());
+#ifdef Q_OS_MAC
+    sidebar->setSelected(toolBox->isVisible());
+#endif
 }
 
 void
diff --git a/src/MainWindow.h b/src/MainWindow.h
index 9b1c0738b..a5bfcb72b 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -448,6 +448,7 @@ class MainWindow : public QMainWindow
         // Mac Native Support
         QWidget *macAnalButtons;
         QtMacButton *import, *compose;
+        QtMacButton *sidebar;
         QtMacSegmentedButton *styleSelector;
         QToolBar *head;
         GcScopeBar *scopebar;
diff --git a/src/QtMacButton.h b/src/QtMacButton.h
index 28f68edbb..e9af10a69 100644
--- a/src/QtMacButton.h
+++ b/src/QtMacButton.h
@@ -58,6 +58,7 @@ public slots:
     void setImage(const QPixmap *image);
     void setChecked(bool checked);
     void setWidth(int x);
+    void setSelected(bool x);
     void setIconAndText();
 
 public:
diff --git a/src/QtMacButton.mm b/src/QtMacButton.mm
index 9f799fa6d..42894b01c 100644
--- a/src/QtMacButton.mm
+++ b/src/QtMacButton.mm
@@ -232,6 +232,15 @@ void QtMacButton::setText(const QString &text)
     [qtw->nsButton setTitle:fromQString(text)];
 }
 
+void QtMacButton::setSelected(bool x)
+{
+    Q_ASSERT(qtw);
+    if (qtw) {
+        [qtw->nsButton setButtonType:NSOnOffButton];
+        [qtw->nsButton setState:(x ? NSOnState : NSOffState)];
+    }
+}
+
 void QtMacButton::setImage(const QPixmap *image)
 {
     Q_ASSERT(qtw);
diff --git a/src/application.qrc b/src/application.qrc
index 17a342ebc..d92413035 100644
--- a/src/application.qrc
+++ b/src/application.qrc
@@ -124,6 +124,7 @@
         <file>images/mac/scope-inactive.png</file>
         <file>images/mac/hide.png</file>
         <file>images/mac/show.png</file>
+        <file>images/mac/sidebar.png</file>
         <file>images/analysis.png</file>
         <file>images/home.png</file>
         <file>images/diary.png</file>