diff --git a/man7/socket.7 b/man7/socket.7
index 6b229ddff..9421686fa 100644
--- a/man7/socket.7
+++ b/man7/socket.7
@@ -72,7 +72,7 @@ between the user process and the network protocol stacks in the kernel.
 The protocol modules are grouped into
 .I protocol families
 such as
-.BR AF_INET ", " AF_IPX ", " AF_PACKET
+.BR AF_INET ", " AF_IPX ", and " AF_PACKET ,
 and
 .I socket types
 such as