diff --git a/CMakeLists.txt b/CMakeLists.txt
index b850454..93b247d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,4 +14,10 @@ target_compile_options(${PROJECT_NAME} PRIVATE
         $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX /external:W0>
         $<$<STREQUAL:${CMAKE_SYSTEM_NAME},Linux>:-fPIC -fvisibility=hidden -Wall -Wextra -Wpedantic -Wmisleading-indentation -Wunused -Wuninitialized -Wshadow -Wconversion -Werror>
         $<$<AND:$<CXX_COMPILER_ID:Clang>,$<STREQUAL:${CMAKE_SYSTEM_NAME},Windows>>:/W4 /WX /external:W0>
+        $<$<STREQUAL:${CMAKE_SYSTEM_PROCESSOR},loongarch64>:-mlsx>
 )
+target_compile_definitions(${PROJECT_NAME} PRIVATE
+        $<$<STREQUAL:${CMAKE_SYSTEM_PROCESSOR},loongarch64>:CV_LSX>
+)
+
+message("Arch:${CMAKE_SYSTEM_PROCESSOR}")