diff --git a/CMakeLists.txt b/CMakeLists.txt
index e47789ebf74c..3deb8e13bf96 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,7 +70,6 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
     IF(GCC_VERSION VERSION_GREATER 4.7 OR GCC_VERSION VERSION_EQUAL 4.7)
         SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
     ELSE(GCC_VERSION VERSION_GREATER 4.7 OR GCC_VERSION VERSION_EQUAL 4.7)
-        SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
         UNSET(BOOST_MIN_VERSION) # For Ubuntu 12.04
     ENDIF(GCC_VERSION VERSION_GREATER 4.7 OR GCC_VERSION VERSION_EQUAL 4.7)
 ENDIF()