diff --git a/lib/chibi/net.module b/lib/chibi/net.module
index 0e907669..7943f5c9 100644
--- a/lib/chibi/net.module
+++ b/lib/chibi/net.module
@@ -1,10 +1,12 @@
 
 (module (chibi net)
-  (export sockaddr? address-info? get-address-info
+  (export sockaddr? address-info? get-address-info make-address-info
           socket connect bind accept listen
           with-net-io open-net-io
           address-info-family address-info-socket-type address-info-protocol
-          address-info-address address-info-address-length address-info-next)
+          address-info-address address-info-address-length address-info-next
+          address-family/unix address-family/inet
+          socket-type/stream socket-type/datagram socket-type/raw)
   (import (scheme))
   (import (chibi filesystem))
   (include-shared "net")
diff --git a/lib/chibi/net.stub b/lib/chibi/net.stub
index 70109cf9..45642fc8 100644
--- a/lib/chibi/net.stub
+++ b/lib/chibi/net.stub
@@ -7,6 +7,7 @@
   predicate:   sockaddr?)
 
 (define-c-struct addrinfo
+  constructor: (make-address-info ai_family ai_socktype ai_protocol)
   finalizer: freeaddrinfo
   predicate: address-info?
   (int              ai_family    address-info-family)
@@ -44,3 +45,10 @@
 ;;> Initiate a connection on a socket.
 
 (define-c int connect (int sockaddr int))
+
+(define-c-const int (address-family/unix "AF_UNIX"))
+(define-c-const int (address-family/inet "AF_INET"))
+(define-c-const int (socket-type/stream "SOCK_STREAM"))
+(define-c-const int (socket-type/datagram "SOCK_DGRAM"))
+(define-c-const int (socket-type/raw "SOCK_RAW"))
+