diff --git a/src/cmd/ndb/dnresolve.c b/src/cmd/ndb/dnresolve.c
index b20f325a..979abe4e 100755
--- a/src/cmd/ndb/dnresolve.c
+++ b/src/cmd/ndb/dnresolve.c
@@ -1,4 +1,5 @@
 #include <u.h>
+#include <sys/time.h>
 #include <libc.h>
 #include <ip.h>
 #include <bio.h>