diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0bb0d26..a775eea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,7 +35,7 @@ elseif (UNIX)
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2 -gz -fno-builtin")
     if (SANITIZE)
         message(STATUS "sanitize is ON")
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLanAGS} -fsanitize=undefined,thread")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined,thread")
     endif (SANITIZE)
 endif ()