diff --git a/crypto/openssh/includes.h b/crypto/openssh/includes.h
--- a/crypto/openssh/includes.h
+++ b/crypto/openssh/includes.h
@@ -34,6 +34,7 @@
 #ifdef HAVE_ENDIAN_H
 # include <endian.h>
 #endif
+#include <fcntl.h>
 #ifdef HAVE_TTYENT_H
 # include <ttyent.h>
 #endif