diff --git a/libc-test/semver/openbsd.txt b/libc-test/semver/openbsd.txt
index fd4563212d60d..22132edaabfbf 100644
--- a/libc-test/semver/openbsd.txt
+++ b/libc-test/semver/openbsd.txt
@@ -1214,6 +1214,7 @@ readdir_r
 readlinkat
 reallocarray
 reboot
+recvmmsg
 recvmsg
 regcomp
 regerror
@@ -1236,6 +1237,7 @@ sem_init
 sem_open
 sem_timedwait
 sem_unlink
+sendmmsg
 sendmsg
 setdomainname
 setgrent
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index e92cf65940141..539eeaecf6fcb 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -837,6 +837,19 @@ extern "C" {
         fd: ::c_int,
         newfd: ::c_int,
     ) -> ::c_int;
+    pub fn sendmmsg(
+        sockfd: ::c_int,
+        msgvec: *mut ::mmsghdr,
+        vlen: ::c_uint,
+        flags: ::c_int,
+    ) -> ::c_int;
+    pub fn recvmmsg(
+        sockfd: ::c_int,
+        msgvec: *mut ::mmsghdr,
+        vlen: ::c_uint,
+        flags: ::c_int,
+        timeout: *mut ::timespec,
+    ) -> ::c_int;
 }
 
 extern "C" {
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 7c63db8e0e205..5971594ff6962 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -2781,20 +2781,6 @@ extern "C" {
 
     pub fn kqueue1(flags: ::c_int) -> ::c_int;
 
-    pub fn sendmmsg(
-        sockfd: ::c_int,
-        msgvec: *mut ::mmsghdr,
-        vlen: ::c_uint,
-        flags: ::c_int,
-    ) -> ::c_int;
-    pub fn recvmmsg(
-        sockfd: ::c_int,
-        msgvec: *mut ::mmsghdr,
-        vlen: ::c_uint,
-        flags: ::c_int,
-        timeout: *mut ::timespec,
-    ) -> ::c_int;
-
     pub fn _lwp_self() -> lwpid_t;
     pub fn memmem(
         haystack: *const ::c_void,