diff --git a/trunk/src/app/srs_app_http.cpp b/trunk/src/app/srs_app_http.cpp
index 0de1a7e66..271cb4cd3 100644
--- a/trunk/src/app/srs_app_http.cpp
+++ b/trunk/src/app/srs_app_http.cpp
@@ -27,6 +27,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <stdlib.h>
 #include <sys/stat.h>
+#include <algorithm>
 using namespace std;
 
 #include <srs_kernel_error.hpp>