diff --git a/CMakeLists.txt b/CMakeLists.txt
index d4d8148..0b6717a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,7 +32,9 @@ IF(LINK_PTHREAD)
     set(PTHREAD_LIBRARIES 'pthread')
 ENDIF(LINK_PTHREAD)
 
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=700")
+set (CMAKE_C_STANDARD 11)
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=700")
 
 if(DEBUG)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -g")