diff --git a/include/iptypes.h b/include/iptypes.h
index 16e7ffb6df6..8ce7df6e9fc 100644
--- a/include/iptypes.h
+++ b/include/iptypes.h
@@ -265,6 +265,18 @@ typedef struct _IP_ADAPTER_ADDRESSES {
     ULONG                           Dhcpv6Iaid;
 } IP_ADAPTER_ADDRESSES, *PIP_ADAPTER_ADDRESSES;
 
+#define GAA_FLAG_SKIP_UNICAST                0x00000001
+#define GAA_FLAG_SKIP_ANYCAST                0x00000002
+#define GAA_FLAG_SKIP_MULTICAST              0x00000004
+#define GAA_FLAG_SKIP_DNS_SERVER             0x00000008
+#define GAA_FLAG_INCLUDE_PREFIX              0x00000010
+#define GAA_FLAG_SKIP_FRIENDLY_NAME          0x00000020
+#define GAA_FLAG_INCLUDE_WINS_INFO           0x00000040
+#define GAA_FLAG_INCLUDE_ALL_GATEWAYS        0x00000080
+#define GAA_FLAG_INCLUDE_ALL_INTERFACES      0x00000100
+#define GAA_FLAG_INCLUDE_ALL_COMPARTMENTS    0x00000200
+#define GAA_FLAG_INCLUDE_TUNNEL_BINDINGORDER 0x00000400
+
 #endif /* _WINSOCK2API_ */
 
 #endif /* WINE_IPTYPES_H_*/