diff --git a/ZLMediaKit/CMakeLists.txt b/ZLMediaKit/CMakeLists.txt
index df11f72..d144eee 100644
--- a/ZLMediaKit/CMakeLists.txt
+++ b/ZLMediaKit/CMakeLists.txt
@@ -33,13 +33,15 @@ project(ZLMediaKit LANGUAGES C CXX)
 # Enable C++11
 set(CMAKE_CXX_STANDARD 11)
 
+add_definitions(-DENABLE_HLS=1)
+
 option(ENABLE_API "Enable C API SDK" ON)
 option(ENABLE_API_STATIC_LIB "Enable mk_api static lib" OFF)
 option(ENABLE_ASAN "Enable Address Sanitize" OFF)
 option(ENABLE_CXX_API "Enable C++ API SDK" OFF)
 option(ENABLE_FAAC "Enable FAAC" OFF)
 option(ENABLE_FFMPEG "Enable FFmpeg" OFF)
-option(ENABLE_HLS "Enable HLS" OFF)
+option(ENABLE_HLS "Enable HLS" ON)
 option(ENABLE_JEMALLOC_STATIC "Enable static linking to the jemalloc library" OFF)
 option(ENABLE_JEMALLOC_DUMP "Enable jemalloc to dump malloc statistics" OFF)
 option(ENABLE_MEM_DEBUG "Enable Memory Debug" OFF)