diff --git a/libtransmission/blocklist.c b/libtransmission/blocklist.c
index 3825928b9..6d82dfa6f 100644
--- a/libtransmission/blocklist.c
+++ b/libtransmission/blocklist.c
@@ -10,7 +10,6 @@
  * $Id$
  */
 
-#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h> /* free */
 #include <string.h>
@@ -35,6 +34,8 @@
 #include "net.h"
 #include "utils.h"
 
+extern int errno;
+
 /***
 ****  PRIVATE
 ***/