diff --git a/rpcs3/Emu/SysCalls/Modules/sys_net.cpp b/rpcs3/Emu/SysCalls/Modules/sys_net.cpp
index 40332c7240..9f660fde7b 100644
--- a/rpcs3/Emu/SysCalls/Modules/sys_net.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/sys_net.cpp
@@ -11,6 +11,7 @@ extern "C"
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#include <unistd.h>
 }
 #endif