diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9faa744..342ced98 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,101 +1,105 @@
 ##
 #   This file is part of Rocs.
 #   Copyright 2008-2011  Tomaz Canabrava <tomaz.canabrava@gmail.com>
 #   Copyright 2010       Wagner Reck <wagner.reck@gmail.com>
 #   Copyright 2011-2014  Andreas Cord-Landwehr <cordlandwehr@kde.org>
 #
 #   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 Software Foundation; either version 2 of
 #   the License, or (at your option) any later version.
 #
 #   This program is distributed in the hope that it will be useful,
 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #   GNU General Public License for more details.
 #
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ##
 
 cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
-project(rocs)
+
+project(rocs LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 # KDE Application Version, managed by release script
 set(KDE_APPLICATIONS_VERSION_MAJOR "19")
 set(KDE_APPLICATIONS_VERSION_MINOR "11")
 set(KDE_APPLICATIONS_VERSION_MICRO "70")
 set(KDE_APPLICATIONS_VERSION "${KDE_APPLICATIONS_VERSION_MAJOR}.${KDE_APPLICATIONS_VERSION_MINOR}.${KDE_APPLICATIONS_VERSION_MICRO}")
 
 find_package(ECM 5.15.0 REQUIRED NO_MODULE)
 find_package(KF5DocTools)
 find_package(Boost "1.49" REQUIRED)
 find_package(Grantlee5 "5.0.0" REQUIRED)
 
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
 include(ECMAddAppIcon)
 include(ECMAddTests)
 include(ECMInstallIcons)
 include(ECMOptionalAddSubdirectory)
 include(ECMSetupVersion)
 include(KDEInstallDirs)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
 include(FeatureSummary)
 include(GenerateExportHeader)
 
 find_package(Qt5 5.4 REQUIRED NO_MODULE COMPONENTS
     Core
     Gui
     QuickWidgets
     Script
     WebKit
     WebKitWidgets
     Widgets
     ScriptTools
     Svg
     Test
     XmlPatterns
 )
 find_package(KF5 5.15 REQUIRED COMPONENTS
     Archive
     Config
     CoreAddons
     Crash
     Declarative
     I18n
     ItemViews
     TextEditor
     XmlGui
 )
 
 include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}
     ${CMAKE_SOURCE_DIR}
     ${CMAKE_BINARY_DIR}
     ${Boost_INCLUDE_DIRS}
 )
 
 add_definitions(-DQT_NO_CAST_TO_ASCII)
 add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 remove_definitions(-DQT_NO_CAST_FROM_ASCII)
 remove_definitions(-DQT_NO_CAST_FROM_BYTEARRAY)
 remove_definitions(-DQT_NO_KEYWORDS)
 
 if(KF5Declarative_VERSION VERSION_GREATER_EQUAL "5.45")
     add_definitions(-DKDECLARATIVE_HAVE_SETCONTEXT=1)
 else()
     add_definitions(-DKDECLARATIVE_HAVE_SETCONTEXT=0)
 endif()
 
 ecm_optional_add_subdirectory(libgraphtheory)
 ecm_optional_add_subdirectory(src)
 ecm_optional_add_subdirectory(icons)
 if(KF5DocTools_FOUND)
     ecm_optional_add_subdirectory(doc)
 endif()
 
 set_package_properties(Boost PROPERTIES DESCRIPTION "Boost C++ Libraries" URL "http://www.boost.org")
 feature_summary(WHAT ALL)
 
 install(FILES org.kde.rocs.appdata.xml DESTINATION ${CMAKE_INSTALL_METAINFODIR})