diff --git a/trunk/src/kernel/srs_kernel_flv.cpp b/trunk/src/kernel/srs_kernel_flv.cpp
index d5c25b8be..0a859f502 100644
--- a/trunk/src/kernel/srs_kernel_flv.cpp
+++ b/trunk/src/kernel/srs_kernel_flv.cpp
@@ -24,6 +24,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_kernel_flv.hpp>
 
 #include <fcntl.h>
+#include <unistd.h>
 #include <sstream>
 using namespace std;
 
diff --git a/trunk/src/rtmp/srs_protocol_rtmp.cpp b/trunk/src/rtmp/srs_protocol_rtmp.cpp
index b7a6e18be..e888bbb80 100644
--- a/trunk/src/rtmp/srs_protocol_rtmp.cpp
+++ b/trunk/src/rtmp/srs_protocol_rtmp.cpp
@@ -34,6 +34,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_kernel_stream.hpp>
 #include <srs_kernel_utility.hpp>
 
+#include <unistd.h>
 using namespace std;
 
 /**