diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index afd2610e..9a595e61 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -826,6 +826,8 @@ pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 3;
 pub const SOCK_SEQPACKET: ::c_int = 5;
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
 pub const IPPROTO_TCP: ::c_int = 6;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 4933ccd5..4852570f 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -547,6 +547,8 @@ pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 3;
 pub const SOCK_SEQPACKET: ::c_int = 5;
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
 pub const IPPROTO_TCP: ::c_int = 6;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index 2818c3ae..6796180a 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -363,6 +363,8 @@ pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 3;
 pub const SOCK_SEQPACKET: ::c_int = 5;
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
 pub const IPPROTO_TCP: ::c_int = 6;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index d62a31ed..634805ca 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -536,6 +536,8 @@ pub const AF_UNIX: ::c_int = 9;
 pub const AF_INET: ::c_int = 1;
 pub const AF_INET6: ::c_int = 6;
 pub const SOCK_RAW: ::c_int = 3;
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
 pub const IPPROTO_TCP: ::c_int = 6;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;
diff --git a/src/unix/notbsd/mod.rs b/src/unix/notbsd/mod.rs
index 8ee7cf81..01b2eef0 100644
--- a/src/unix/notbsd/mod.rs
+++ b/src/unix/notbsd/mod.rs
@@ -437,6 +437,8 @@ pub const AF_INET6: ::c_int = 10;
 pub const AF_UNSPEC: ::c_int = 0;
 pub const AF_NETLINK: ::c_int = 16;
 pub const SOCK_RAW: ::c_int = 3;
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
 pub const IPPROTO_TCP: ::c_int = 6;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;
diff --git a/src/unix/solaris/mod.rs b/src/unix/solaris/mod.rs
index b6042085..5a15f812 100644
--- a/src/unix/solaris/mod.rs
+++ b/src/unix/solaris/mod.rs
@@ -782,6 +782,8 @@ pub const SOCK_STREAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 4;
 pub const SOCK_RDM: ::c_int = 5;
 pub const SOCK_SEQPACKET: ::c_int = 6;
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
 pub const IPPROTO_TCP: ::c_int = 6;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;