diff --git a/crypto/libdes/enc_read.c b/crypto/libdes/enc_read.c
index 2d79d3119862..ed3ee82f8699 100644
--- a/crypto/libdes/enc_read.c
+++ b/crypto/libdes/enc_read.c
@@ -56,8 +56,12 @@
  * [including the GNU Public Licence.]
  */
 
+#include <sys/types.h>
+#include <sys/uio.h>
 #include <stdio.h>
 #include <errno.h>
+#include <unistd.h>                                                            
+
 #include "des_locl.h"
 
 /* This has some uglies in it but it works - even over sockets. */
diff --git a/crypto/libdes/enc_writ.c b/crypto/libdes/enc_writ.c
index cf6138271489..128b151a6392 100644
--- a/crypto/libdes/enc_writ.c
+++ b/crypto/libdes/enc_writ.c
@@ -56,8 +56,12 @@
  * [including the GNU Public Licence.]
  */
 
+#include <sys/types.h>
+#include <sys/uio.h>
 #include <errno.h>
 #include <time.h>
+#include <unistd.h>
+
 #include "des_locl.h"
 
 int des_enc_write(fd, buf, len, sched, iv)