diff --git a/libc/netdb/lib_dnsquery.c b/libc/netdb/lib_dnsquery.c
index 283b3ae8fe4..54a5046fabe 100644
--- a/libc/netdb/lib_dnsquery.c
+++ b/libc/netdb/lib_dnsquery.c
@@ -190,7 +190,7 @@ static int dns_send_query(int sd, FAR const char *name,
 
 #ifdef CONFIG_NET_IPv4
 #ifdef CONFIG_NET_IPv6
-  if (uaddr->addr.sa_family == AF_INET)
+  if (uaddr->ipv4.sin_family == AF_INET)
 #endif
     {
       addrlen = sizeof(struct sockaddr_in);
@@ -521,7 +521,7 @@ static int dns_query_callback(FAR void *arg, FAR struct sockaddr *addr,
 #ifdef CONFIG_NET_IPv6
       /* Is this an IPv4 address? */
 
-      if (query->addr.sa_family == AF_INET6)
+      if (query->addr->sa_family == AF_INET6)
         {
           /* Yes.. verify the address size */
 
diff --git a/libc/netdb/lib_gethostbynamer.c b/libc/netdb/lib_gethostbynamer.c
index 747cf6a0c58..80109dfe779 100644
--- a/libc/netdb/lib_gethostbynamer.c
+++ b/libc/netdb/lib_gethostbynamer.c
@@ -382,7 +382,7 @@ static int lib_find_answer(FAR const char *name, FAR struct hostent *host,
       DEBUGASSERT(addrlen == sizeof(struct sockaddr_in6));
       addrlen  = sizeof(struct sockaddr_in6);
       addrtype = AF_INET6;
-      addrdata = &((FAR struct sockaddr_in6 *)ptr)->sin_addr;
+      addrdata = &((FAR struct sockaddr_in6 *)ptr)->sin6_addr;
     }
 #endif
 
@@ -524,7 +524,7 @@ static int lib_dns_lookup(FAR const char *name, FAR struct hostent *host,
           DEBUGASSERT(addrlen == sizeof(struct sockaddr_in6));
           addrlen  = sizeof(struct sockaddr_in6);
           addrtype = AF_INET6;
-          addrdata = &((FAR struct sockaddr_in6 *)ptr)->sin_addr;
+          addrdata = &((FAR struct sockaddr_in6 *)ptr)->sin6_addr;
         }
 #endif