wrong struct alignment

[dd0s via Digitalmars-d-learn]

i have the following struct, and i expect it to have 30 bytes
but sizeof tells me it has 32 bytes. dmd seems to still use 4byte 
alignment altough i specified to align 2bytes.

struct netadr_t {
	align(2):
     int    type; // 0
     int    scope_id; // 4
     short  port; // 8 // <-- this is 4 bytes instead of 2
     int    sock;   // 10

     union {
     ubyte[4]    ip; // 14
     ubyte[10] ipx;
     ubyte[16] ip6;
     }
}

since i'm interfacing with a c library the struct layout has to 
be equal :(