diff --git a/libssh/poll.c b/libssh/poll.c
index c20300dd..ff17d6bf 100644
--- a/libssh/poll.c
+++ b/libssh/poll.c
@@ -25,6 +25,8 @@
 
 /* This code is based on glib's gpoll */
 
+#include <errno.h>
+
 #include "config.h"
 #include "libssh/priv.h"