diff --git a/toxcore/TCP_client.c b/toxcore/TCP_client.c
index b69b422e..4f3411f1 100644
--- a/toxcore/TCP_client.c
+++ b/toxcore/TCP_client.c
@@ -20,6 +20,9 @@
 *
 */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "TCP_client.h"
 
diff --git a/toxcore/TCP_server.c b/toxcore/TCP_server.c
index 410111f4..1c4ffdcb 100644
--- a/toxcore/TCP_server.c
+++ b/toxcore/TCP_server.c
@@ -20,6 +20,10 @@
 *
 */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "TCP_server.h"
 
 #if !defined(_WIN32) && !defined(__WIN32__) && !defined (WIN32)