diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0465acf..556a4c1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,14 +10,10 @@ if(WIN32)
 	add_definitions(-D_WIN32_WINNT=0x0600) ##should be this or the next two for working on XP
 	#add_definitions(-D_WIN32_WINNT=0x0501)
 	#add_definitions(-DLUASOCKET_INET_PTON)
-	add_definitions("-DLUASOCKET_API=__declspec(dllexport)")
-	add_definitions("-DMIME_API=__declspec(dllexport)")
 	set(LUASOCKET_LINK  wsock32 ws2_32 )
 	set(POSTN dll)
 else()
 	list(REMOVE_ITEM socket_src ./src/wsocket.c) 
-	add_definitions("-DLUASOCKET_API=__attribute__((visibility(default)))")
-	add_definitions("-DMIME_API=__attribute__((visibility(default)))")
 	set(POSTN so)
 endif(WIN32)
 
@@ -25,7 +21,12 @@ endif(WIN32)
 INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR})
 
 add_definitions(-DLUASOCKET_DEBUG)
-add_definitions(-DLUA_BUILD_AS_DLL -DLUA_LIB -DLUASOCKET_EXPORTS)
+
+if(WIN32)
+add_definitions(-DLUA_BUILD_AS_DLL -DLUA_LIB)
+endif()
+
+add_definitions( -DLUASOCKET_EXPORTS)
 
 add_library(socket SHARED ${socket_src})
 ADD_LIBRARY(mime SHARED ./src/mime.c ./src/compat.c)