diff --git a/unbound-1.4.20-roundrobin.patch b/unbound-1.4.20-roundrobin.patch
new file mode 100644
index 0000000..dcd4ebc
--- /dev/null
+++ b/unbound-1.4.20-roundrobin.patch
@@ -0,0 +1,12 @@
+diff -Naur unbound-1.4.20-orig/util/data/msgencode.c unbound-1.4.20/util/data/msgencode.c
+--- unbound-1.4.20-orig/util/data/msgencode.c	2012-04-10 05:16:39.000000000 -0400
++++ unbound-1.4.20/util/data/msgencode.c	2013-05-21 15:47:01.435609420 -0400
+@@ -659,7 +659,7 @@
+ 		}
+ 	}
+ 	/* roundrobin offset. using query id for random number */
+-	rr_offset = RRSET_ROUNDROBIN?id:0;
++	rr_offset = RRSET_ROUNDROBIN ? ntohs(id) : 0;
+ 
+ 	/* insert answer section */
+ 	if((r=insert_section(rep, rep->an_numrrsets, &ancount, buffer,