diff --git a/backends/twitter/CMakeLists.txt b/backends/twitter/CMakeLists.txt
index 1aef1b3ec740c8f736c48c8b0d86477a5143674e..7853267e855c5557232d02180b43b915e6a480ee 100644
--- a/backends/twitter/CMakeLists.txt
+++ b/backends/twitter/CMakeLists.txt
@@ -3,9 +3,6 @@ FILE(GLOB SRC *.cpp libtwitcurl/*.cpp Requests/*.cpp)
 add_executable(spectrum2_twitter_backend ${SRC})
 
 if (NOT WIN32)
-if (CMAKE_COMPILER_IS_GNUCXX)
-	add_definitions("-std=c++0x")
-endif()
 target_link_libraries(spectrum2_twitter_backend curl transport pthread ${Boost_LIBRARIES} ${SWIFTEN_LIBRARY} ${LOG4CXX_LIBRARIES})
 else ()
 include_directories("${CMAKE_SOURCE_DIR}/msvc-deps/curl/include")