diff --git a/src/lib.rs b/src/lib.rs
index 62554f38..883a700a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -137,6 +137,16 @@ impl Domain {
     /// Domain for IPv6 communication, corresponding to `AF_INET6`.
     pub const IPV6: Domain = Domain(sys::AF_INET6);
 
+    /// Domain for IPv4 communication, corresponding to `AF_INET`.
+    pub fn ipv4() -> Domain {
+        Domain::IPV4
+    }
+
+    /// Domain for IPv6 communication, corresponding to `AF_INET6`.
+    pub fn ipv6() -> Domain {
+        Domain::IPV6
+    }
+
     /// Returns the correct domain for `address`.
     pub fn for_address(address: SocketAddr) -> Domain {
         match address {