diff --git a/src/obproxy/iocore/net/ob_inet.h b/src/obproxy/iocore/net/ob_inet.h
index 2beebaedfb602ac106a0b00af60ec53f57cfc21e..c7b31477aac0a0db78612d7abe6f229e3ed64e2c 100644
--- a/src/obproxy/iocore/net/ob_inet.h
+++ b/src/obproxy/iocore/net/ob_inet.h
@@ -562,6 +562,10 @@ inline bool ops_ip_copy(sockaddr &dst, const sockaddr &src)
     case AF_INET6:
       n2 = sizeof(sockaddr_in6);
       break;
+
+    default:
+      n2 = sizeof(sockaddr_in);
+      break;
   }
   if (n && n <= n2) {
     MEMCPY(&dst, &src, n);