diff --git a/crypto/bio/bss_dgram.c b/crypto/bio/bss_dgram.c
index dde0abe05..9d2b78d3a 100644
--- a/crypto/bio/bss_dgram.c
+++ b/crypto/bio/bss_dgram.c
@@ -61,6 +61,7 @@
 
 #include <stdio.h>
 #include <errno.h>
+#include <sys/time.h>
 #define USE_SOCKETS
 #include "cryptlib.h"