diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,10 +29,6 @@
 option(BUILD_QCH "Build API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)" OFF)
 add_feature_info(QCH ${BUILD_QCH} "API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)")
 
-IF(THREADWEAVER_USE_GNU_CXX11)
-    ADD_DEFINITIONS(-std=c++11)
-ENDIF()
-
 ecm_setup_version(PROJECT VARIABLE_PREFIX THREADWEAVER
                         VERSION_HEADER "${CMAKE_CURRENT_BINARY_DIR}/threadweaver_version.h"
                         PACKAGE_VERSION_FILE "${CMAKE_CURRENT_BINARY_DIR}/KF5ThreadWeaverConfigVersion.cmake"
diff --git a/benchmarks/CMakeLists.txt b/benchmarks/CMakeLists.txt
--- a/benchmarks/CMakeLists.txt
+++ b/benchmarks/CMakeLists.txt
@@ -1,9 +1,5 @@
 find_package(Qt5Test ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE)
 
-if(NOT MSVC)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
-endif()
-
 remove_definitions(-DQT_NO_CAST_FROM_ASCII)
 
 ########### next target ###############
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -7,13 +7,6 @@
    # ...generate Markdown files with Snippets for HelloWorldRaw.in.md and HelloInternet.in.md
 endif()
 
-# Tell CMake we will be using C++ 11:
-if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
-elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel" AND NOT WIN32)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
-endif()
-
 add_subdirectory(HelloWorld)
 add_subdirectory(HelloWorldRaw)
 add_subdirectory(HelloInternet)