diff --git a/src/plugins/coreplugin/navigationsubwidget.cpp b/src/plugins/coreplugin/navigationsubwidget.cpp
index 0087980f040..881465af753 100644
--- a/src/plugins/coreplugin/navigationsubwidget.cpp
+++ b/src/plugins/coreplugin/navigationsubwidget.cpp
@@ -82,12 +82,12 @@ NavigationSubWidget::NavigationSubWidget(NavigationWidget *parentWidget, int pos
     splitAction->setMenu(m_splitMenu);
     connect(m_splitMenu, &QMenu::aboutToShow, this, &NavigationSubWidget::populateSplitMenu);
 
-    QToolButton *close = new QToolButton();
-    close->setIcon(QIcon(QLatin1String(Constants::ICON_BUTTON_CLOSE)));
-    close->setToolTip(tr("Close"));
+    m_closeButton = new QToolButton();
+    m_closeButton->setIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_BOTTOM)));
+    m_closeButton->setToolTip(tr("Close"));
 
     toolBarLayout->addWidget(splitAction);
-    toolBarLayout->addWidget(close);
+    toolBarLayout->addWidget(m_closeButton);
 
     QVBoxLayout *lay = new QVBoxLayout();
     lay->setMargin(0);
@@ -95,7 +95,7 @@ NavigationSubWidget::NavigationSubWidget(NavigationWidget *parentWidget, int pos
     setLayout(lay);
     lay->addWidget(m_toolBar);
 
-    connect(close, SIGNAL(clicked()), this, SIGNAL(closeMe()));
+    connect(m_closeButton, SIGNAL(clicked()), this, SIGNAL(closeMe()));
 
     setFactoryIndex(factoryIndex);
 
@@ -189,6 +189,11 @@ Core::Command *NavigationSubWidget::command(const QString &title) const
     return 0;
 }
 
+void NavigationSubWidget::setCloseIcon(const QIcon &icon)
+{
+    m_closeButton->setIcon(icon);
+}
+
 int NavigationSubWidget::factoryIndex() const
 {
     return m_navigationComboBox->currentIndex();
diff --git a/src/plugins/coreplugin/navigationsubwidget.h b/src/plugins/coreplugin/navigationsubwidget.h
index afb56bef8c3..584ee94ad41 100644
--- a/src/plugins/coreplugin/navigationsubwidget.h
+++ b/src/plugins/coreplugin/navigationsubwidget.h
@@ -70,6 +70,7 @@ public:
     void restoreSettings();
 
     Command *command(const QString &title) const;
+    void setCloseIcon(const QIcon &icon);
 
 signals:
     void splitMe(int factoryIndex);
@@ -84,6 +85,7 @@ private:
     NavigationWidget *m_parentWidget;
     QComboBox *m_navigationComboBox;
     QMenu *m_splitMenu;
+    QToolButton *m_closeButton;
     QWidget *m_navigationWidget;
     INavigationWidgetFactory *m_navigationWidgetFactory;
     Utils::StyledBar *m_toolBar;
diff --git a/src/plugins/coreplugin/navigationwidget.cpp b/src/plugins/coreplugin/navigationwidget.cpp
index 3e359341f33..9e3f6345a81 100644
--- a/src/plugins/coreplugin/navigationwidget.cpp
+++ b/src/plugins/coreplugin/navigationwidget.cpp
@@ -246,13 +246,19 @@ Internal::NavigationSubWidget *NavigationWidget::insertSubItem(int position,int
         d->m_subWidgets.at(pos)->setPosition(pos + 1);
     }
 
+    if (!d->m_subWidgets.isEmpty()) // Make all icons the bottom icon
+        d->m_subWidgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_BOTTOM)));
+
     Internal::NavigationSubWidget *nsw = new Internal::NavigationSubWidget(this, position, index);
     connect(nsw, &Internal::NavigationSubWidget::splitMe,
             this, &NavigationWidget::splitSubWidget);
     connect(nsw, SIGNAL(closeMe()), this, SLOT(closeSubWidget()));
     insertWidget(position, nsw);
     d->m_subWidgets.insert(position, nsw);
-
+    if (d->m_subWidgets.size() == 1)
+        d->m_subWidgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_LEFT)));
+    else
+        d->m_subWidgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_TOP)));
     return nsw;
 }
 
@@ -297,6 +303,11 @@ void NavigationWidget::closeSubWidget()
         d->m_subWidgets.removeOne(subWidget);
         subWidget->hide();
         subWidget->deleteLater();
+        // update close button of top item
+        if (d->m_subWidgets.size() == 1)
+            d->m_subWidgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_LEFT)));
+        else
+            d->m_subWidgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_TOP)));
     } else {
         setShown(false);
     }
diff --git a/src/plugins/coreplugin/outputpanemanager.cpp b/src/plugins/coreplugin/outputpanemanager.cpp
index 94a0faab467..eda340cdd6c 100644
--- a/src/plugins/coreplugin/outputpanemanager.cpp
+++ b/src/plugins/coreplugin/outputpanemanager.cpp
@@ -150,7 +150,7 @@ OutputPaneManager::OutputPaneManager(QWidget *parent) :
     m_minMaxAction->setIcon(m_maximizeIcon);
     m_minMaxAction->setText(tr("Maximize Output Pane"));
 
-    m_closeButton->setIcon(QIcon(QLatin1String(Constants::ICON_BUTTON_CLOSE)));
+    m_closeButton->setIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_BOTTOM)));
     connect(m_closeButton, SIGNAL(clicked()), this, SLOT(slotHide()));
 
     connect(ICore::instance(), SIGNAL(saveSettingsRequested()), this, SLOT(saveSettings()));
diff --git a/src/plugins/coreplugin/sidebar.cpp b/src/plugins/coreplugin/sidebar.cpp
index b2efd1476db..0822e3e2813 100644
--- a/src/plugins/coreplugin/sidebar.cpp
+++ b/src/plugins/coreplugin/sidebar.cpp
@@ -30,6 +30,7 @@
 
 #include "sidebar.h"
 #include "sidebarwidget.h"
+#include "coreconstants.h"
 
 #include "actionmanager/command.h"
 #include <utils/algorithm.h>
@@ -202,12 +203,18 @@ SideBarItem *SideBar::item(const QString &id)
 
 Internal::SideBarWidget *SideBar::insertSideBarWidget(int position, const QString &id)
 {
+    d->m_widgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_BOTTOM)));
+
     Internal::SideBarWidget *item = new Internal::SideBarWidget(this, id);
     connect(item, SIGNAL(splitMe()), this, SLOT(splitSubWidget()));
     connect(item, SIGNAL(closeMe()), this, SLOT(closeSubWidget()));
     connect(item, SIGNAL(currentWidgetChanged()), this, SLOT(updateWidgets()));
     insertWidget(position, item);
     d->m_widgets.insert(position, item);
+    if (d->m_widgets.size() == 1)
+        d->m_widgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_LEFT)));
+    else
+        d->m_widgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_TOP)));
     updateWidgets();
     return item;
 }
@@ -235,6 +242,11 @@ void SideBar::closeSubWidget()
         if (!widget)
             return;
         removeSideBarWidget(widget);
+        // update close button of top item
+        if (d->m_widgets.size() == 1)
+            d->m_widgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_LEFT)));
+        else
+            d->m_widgets.at(0)->setCloseIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_TOP)));
         updateWidgets();
     } else {
         if (d->m_closeWhenEmpty) {
diff --git a/src/plugins/coreplugin/sidebarwidget.cpp b/src/plugins/coreplugin/sidebarwidget.cpp
index c97615928c3..dfb064f4283 100644
--- a/src/plugins/coreplugin/sidebarwidget.cpp
+++ b/src/plugins/coreplugin/sidebarwidget.cpp
@@ -80,11 +80,11 @@ SideBarWidget::SideBarWidget(SideBar *sideBar, const QString &id)
     connect(m_splitAction, SIGNAL(triggered()), this, SIGNAL(splitMe()));
     m_toolbar->addAction(m_splitAction);
 
-    QAction *closeAction = new QAction(tr("Close"), m_toolbar);
-    closeAction->setToolTip(tr("Close"));
-    closeAction->setIcon(QIcon(QLatin1String(Constants::ICON_BUTTON_CLOSE)));
-    connect(closeAction, SIGNAL(triggered()), this, SIGNAL(closeMe()));
-    m_toolbar->addAction(closeAction);
+    m_closeAction = new QAction(tr("Close"), m_toolbar);
+    m_closeAction->setToolTip(tr("Close"));
+    m_closeAction->setIcon(QIcon(QLatin1String(Constants::ICON_CLOSE_SPLIT_BOTTOM)));
+    connect(m_closeAction, SIGNAL(triggered()), this, SIGNAL(closeMe()));
+    m_toolbar->addAction(m_closeAction);
 
     QVBoxLayout *lay = new QVBoxLayout();
     lay->setMargin(0);
@@ -212,5 +212,10 @@ Command *SideBarWidget::command(const QString &title) const
     return 0;
 }
 
+void SideBarWidget::setCloseIcon(const QIcon &icon)
+{
+    m_closeAction->setIcon(icon);
+}
+
 } // namespace Internal
 } // namespace Core
diff --git a/src/plugins/coreplugin/sidebarwidget.h b/src/plugins/coreplugin/sidebarwidget.h
index f916e1cc8fe..339db62e6ae 100644
--- a/src/plugins/coreplugin/sidebarwidget.h
+++ b/src/plugins/coreplugin/sidebarwidget.h
@@ -64,6 +64,8 @@ public:
 
     Command *command(const QString &title) const;
 
+    void setCloseIcon(const QIcon &icon);
+
 signals:
     void splitMe();
     void closeMe();
@@ -77,6 +79,7 @@ private:
     SideBarItem *m_currentItem;
     QToolBar *m_toolbar;
     QAction *m_splitAction;
+    QAction *m_closeAction;
     QList<QAction *> m_addedToolBarActions;
     SideBar *m_sideBar;
 };