diff --git a/psw/enclave_common/sgx_enclave_common.cpp b/psw/enclave_common/sgx_enclave_common.cpp
index 9867ecc86..46fcf8733 100644
--- a/psw/enclave_common/sgx_enclave_common.cpp
+++ b/psw/enclave_common/sgx_enclave_common.cpp
@@ -35,6 +35,7 @@
 #include <dlfcn.h>
 #include <map>
 #include <functional>
+#include <algorithm>
 #include "sgx_enclave_common.h"
 #include "sgx_urts.h"
 #include "arch.h"