diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 484ede5d8cc34..9c8173f339838 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -393,6 +393,8 @@ pub const F_GETNOSIGPIPE: ::c_int = 13;
 pub const F_SETNOSIGPIPE: ::c_int = 14;
 pub const F_MAXFD: ::c_int = 11;
 
+pub const IP_RECVDSTADDR: ::c_int = 7;
+pub const IP_SENDSRCADDR: ::c_int = IP_RECVDSTADDR;
 pub const IP_RECVIF: ::c_int = 20;
 pub const IP_PKTINFO: ::c_int = 25;
 pub const IP_RECVPKTINFO: ::c_int = 26;