diff --git a/libvncserver/rfbserver.c b/libvncserver/rfbserver.c
index 4db3f21..23c4d77 100644
--- a/libvncserver/rfbserver.c
+++ b/libvncserver/rfbserver.c
@@ -271,7 +271,11 @@ rfbNewTCPOrUDPClient(rfbScreenInfoPtr rfbScreen,
     rfbProtocolVersionMsg pv;
     rfbClientIteratorPtr iterator;
     rfbClientPtr cl,cl_;
+#ifdef LIBVNCSERVER_IPv6
     struct sockaddr_storage addr;
+#else
+    struct sockaddr_in addr;
+#endif
     socklen_t addrlen = sizeof(addr);
     rfbProtocolExtension* extension;
 
diff --git a/libvncserver/sockets.c b/libvncserver/sockets.c
index 132a721..3b5ef60 100644
--- a/libvncserver/sockets.c
+++ b/libvncserver/sockets.c
@@ -380,7 +380,11 @@ rfbProcessNewConnection(rfbScreenInfoPtr rfbScreen)
 {
     const int one = 1;
     int sock = -1;
+#ifdef LIBVNCSERVER_IPv6
     struct sockaddr_storage addr;
+#else
+    struct sockaddr_in addr;
+#endif
     socklen_t addrlen = sizeof(addr);
     fd_set listen_fds; 
     int chosen_listen_sock = -1;