diff --git a/crypto/openssh/includes.h b/crypto/openssh/includes.h
index 6d17ef6da93..c3cd8b40e0b 100644
--- a/crypto/openssh/includes.h
+++ b/crypto/openssh/includes.h
@@ -34,6 +34,9 @@
 #ifdef HAVE_ENDIAN_H
 # include <endian.h>
 #endif
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
 #ifdef HAVE_TTYENT_H
 # include <ttyent.h>
 #endif