diff --git a/JGE/src/pc/JSocket.cpp b/JGE/src/pc/JSocket.cpp
index 49eb7165a..f04d36913 100644
--- a/JGE/src/pc/JSocket.cpp
+++ b/JGE/src/pc/JSocket.cpp
@@ -7,6 +7,7 @@
 #include <winsock.h>
 #include <fcntl.h>
 #elif LINUX
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>