diff --git a/src/network.c b/src/network.c
index 637ed17..81940f8 100644
--- a/src/network.c
+++ b/src/network.c
@@ -10,6 +10,10 @@
 #include <stdio.h>
 #include <signal.h>
 
+#ifdef __linux__
+#define _POSIX_C_SOURCE
+#endif // __linux__
+
 #include "lfnetwork.h"
 
 static void sighandler(int s) {