diff --git a/src/etcp_connections.c b/src/etcp_connections.c
index a61ef13f..ff32164e 100644
--- a/src/etcp_connections.c
+++ b/src/etcp_connections.c
@@ -3,6 +3,7 @@
 #include "../lib/platform_compat.h"
 #ifndef _WIN32
 #include <net/if.h>
+#include <endian.h>
 #endif
 #include <stdlib.h>
 #include <unistd.h>