diff --git a/src/unixdgram.c b/src/unixdgram.c
index 69093d7..0fc5dd0 100644
--- a/src/unixdgram.c
+++ b/src/unixdgram.c
@@ -8,12 +8,11 @@
 #include "socket.h"
 #include "options.h"
 #include "unix.h"
+#include "unixdef.h"
 
 #include <string.h>
 #include <stdlib.h>
 
-#include <sys/un.h>
-
 #define UNIXDGRAM_DATAGRAMSIZE 8192
 
 /* provide a SUN_LEN macro if sys/un.h doesn't (e.g. Android) */
diff --git a/src/unixstream.c b/src/unixstream.c
index 02aced9..796d313 100644
--- a/src/unixstream.c
+++ b/src/unixstream.c
@@ -7,10 +7,10 @@
 #include "auxiliar.h"
 #include "socket.h"
 #include "options.h"
+#include "unixdef.h"
 #include "unixstream.h"
 
 #include <string.h>
-#include <sys/un.h>
 
 /*=========================================================================*\
 * Internal function prototypes