diff --git a/HISTORY.rst b/HISTORY.rst
index 6379930e7..1213db2c3 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -9,6 +9,10 @@ XXXX-XX-XX
 
 - 1124_: documentation moved to http://psutil.readthedocs.io
 
+**Big fixes**
+
+- 1105_: [FreeBSD] psutil does not compile on FreeBSD 12.
+
 **Compatibility notes**
 
 - 1120_: .exe files for Windows are no longer uploaded on PYPI as per PEP-527;
diff --git a/psutil/arch/freebsd/proc_socks.c b/psutil/arch/freebsd/proc_socks.c
index 9b03e0591..c5b19a0de 100644
--- a/psutil/arch/freebsd/proc_socks.c
+++ b/psutil/arch/freebsd/proc_socks.c
@@ -136,20 +136,36 @@ psutil_search_tcplist(char *buf, struct kinfo_file *kif) {
         if (kif->kf_sock_domain == AF_INET) {
             if (!psutil_sockaddr_matches(
                     AF_INET, inp->inp_lport, &inp->inp_laddr,
+#if __FreeBSD_version < 1200031
                     &kif->kf_sa_local))
+#else
+                    &kif->kf_un.kf_sock.kf_sa_local))
+#endif
                 continue;
             if (!psutil_sockaddr_matches(
                     AF_INET, inp->inp_fport, &inp->inp_faddr,
+#if __FreeBSD_version < 1200031
                     &kif->kf_sa_peer))
+#else
+                    &kif->kf_un.kf_sock.kf_sa_peer))
+#endif
                 continue;
         } else {
             if (!psutil_sockaddr_matches(
                     AF_INET6, inp->inp_lport, &inp->in6p_laddr,
+#if __FreeBSD_version < 1200031
                     &kif->kf_sa_local))
+#else
+                    &kif->kf_un.kf_sock.kf_sa_local))
+#endif
                 continue;
             if (!psutil_sockaddr_matches(
                     AF_INET6, inp->inp_fport, &inp->in6p_faddr,
+#if __FreeBSD_version < 1200031
                     &kif->kf_sa_peer))
+#else
+                    &kif->kf_un.kf_sock.kf_sa_peer))
+#endif
                 continue;
         }
 
@@ -243,19 +259,35 @@ psutil_proc_connections(PyObject *self, PyObject *args) {
                 inet_ntop(
                     kif->kf_sock_domain,
                     psutil_sockaddr_addr(kif->kf_sock_domain,
+#if __FreeBSD_version < 1200031
                                          &kif->kf_sa_local),
+#else
+                                         &kif->kf_un.kf_sock.kf_sa_local),
+#endif
                     lip,
                     sizeof(lip));
                 inet_ntop(
                     kif->kf_sock_domain,
                     psutil_sockaddr_addr(kif->kf_sock_domain,
+#if __FreeBSD_version < 1200031
                                          &kif->kf_sa_peer),
+#else
+                                         &kif->kf_un.kf_sock.kf_sa_peer),
+#endif
                     rip,
                     sizeof(rip));
                 lport = htons(psutil_sockaddr_port(kif->kf_sock_domain,
+#if __FreeBSD_version < 1200031
                                                    &kif->kf_sa_local));
+#else
+                                                   &kif->kf_un.kf_sock.kf_sa_local));
+#endif
                 rport = htons(psutil_sockaddr_port(kif->kf_sock_domain,
+#if __FreeBSD_version < 1200031
                                                    &kif->kf_sa_peer));
+#else
+                                                   &kif->kf_un.kf_sock.kf_sa_peer));
+#endif
 
                 // construct python tuple/list
                 py_laddr = Py_BuildValue("(si)", lip, lport);
@@ -287,7 +319,11 @@ psutil_proc_connections(PyObject *self, PyObject *args) {
             else if (kif->kf_sock_domain == AF_UNIX) {
                 struct sockaddr_un *sun;
 
+#if __FreeBSD_version < 1200031
                 sun = (struct sockaddr_un *)&kif->kf_sa_local;
+#else
+                sun = (struct sockaddr_un *)&kif->kf_un.kf_sock.kf_sa_local;
+#endif
                 snprintf(
                     path, sizeof(path), "%.*s",
                     (int)(sun->sun_len - (sizeof(*sun) - sizeof(sun->sun_path))),