diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32c73f6..d9d01f5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ find_package(OpenMP REQUIRED)
 set(SRCS
     src/Main.cpp)
 
-set(CMAKE_CXX_FLAGS "-std=c++14 ${OpenMP_CXX_FLAGS} -fno-elide-constructors -pedantic-errors -Wall -Wextra -Werror -Wpedantic -Winit-self -Wmissing-declarations -Wuninitialized -Wfatal-errors")
+set(CMAKE_CXX_FLAGS "-std=c++11 ${OpenMP_CXX_FLAGS} -fno-elide-constructors -pedantic-errors -Wall -Wextra -Werror -Wpedantic -Winit-self -Wmissing-declarations -Wuninitialized -Wfatal-errors")
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -O3")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -g -O0")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS} -g -O3")