diff --git a/gsock.h b/gsock.h
index 416ea49..24bec5f 100644
--- a/gsock.h
+++ b/gsock.h
@@ -243,7 +243,7 @@ public:
     // <0: Error.
     // Set timeout to -1 for infinity waiting.
     // Get data from events[i].events and events[i].data.fd
-    int wait(epoll_event* events,int maxsize,int timeout);
+    int wait(struct epoll_event* events,int maxsize,int timeout);
 
     ~epoll();
 private:
diff --git a/gsock_helper.cpp b/gsock_helper.cpp
index 97405a4..aac0f64 100644
--- a/gsock_helper.cpp
+++ b/gsock_helper.cpp
@@ -4,6 +4,7 @@
 */
 
 #include "gsock_helper.h"
+#include <cstring>
 
 #ifdef _WIN32
 /// Using Win8.1