diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@
 # minimal requirements
 cmake_minimum_required (VERSION 2.8.12 FATAL_ERROR)
 set (QT_MIN_VERSION "5.4.0")
-set(KF5_DEP_VERSION "5.10.0")
+set(KF5_DEP_VERSION "5.13.0") # we need KMultiTabBar::appendButton(const QIcon &..., ...)
 
 # KDE Application Version, managed by release script
 set (KDE_APPLICATIONS_VERSION_MAJOR "17")
diff --git a/kate/katemdi.h b/kate/katemdi.h
--- a/kate/katemdi.h
+++ b/kate/katemdi.h
@@ -31,15 +31,15 @@
 
 #include <QMap>
 #include <QSplitter>
-#include <QPixmap>
 #include <QList>
 #include <QEvent>
 #include <QChildEvent>
 #include <QPointer>
 #include <QFrame>
 
 class KActionMenu;
 class QAction;
+class QPixmap;
 class KConfigBase;
 
 namespace KTextEditor
@@ -174,7 +174,7 @@
      */
     bool persistent;
 
-    QPixmap icon;
+    QIcon icon;
     QString text;
 };
 
@@ -189,7 +189,7 @@
     void setSplitter(QSplitter *sp);
 
 public:
-    ToolView *addWidget(const QPixmap &icon, const QString &text, ToolView *widget);
+    ToolView *addWidget(const QIcon &icon, const QString &text, ToolView *widget);
     bool removeWidget(ToolView *widget);
 
     bool showWidget(ToolView *widget);
@@ -293,7 +293,7 @@
      * @param text text to use in addition to icon
      * @return created toolview on success or 0
      */
-    ToolView *createToolView(KTextEditor::Plugin *plugin, const QString &identifier, KMultiTabBar::KMultiTabBarPosition pos, const QPixmap &icon, const QString &text);
+    ToolView *createToolView(KTextEditor::Plugin *plugin, const QString &identifier, KMultiTabBar::KMultiTabBarPosition pos, const QIcon &icon, const QString &text);
 
     /**
      * give you handle to toolview for the given name, 0 if no toolview around
diff --git a/kate/katemdi.cpp b/kate/katemdi.cpp
--- a/kate/katemdi.cpp
+++ b/kate/katemdi.cpp
@@ -305,7 +305,7 @@
     m_ownSplit->hide();
 }
 
-ToolView *Sidebar::addWidget(const QPixmap &icon, const QString &text, ToolView *widget)
+ToolView *Sidebar::addWidget(const QIcon &icon, const QString &text, ToolView *widget)
 {
     static int id = 0;
 
@@ -792,7 +792,7 @@
     return m_centralWidget;
 }
 
-ToolView *MainWindow::createToolView(KTextEditor::Plugin *plugin, const QString &identifier, KMultiTabBar::KMultiTabBarPosition pos, const QPixmap &icon, const QString &text)
+ToolView *MainWindow::createToolView(KTextEditor::Plugin *plugin, const QString &identifier, KMultiTabBar::KMultiTabBarPosition pos, const QIcon &icon, const QString &text)
 {
     if (m_idToWidget[identifier]) {
         return 0;