diff --git a/sysutils/lsof/files/patch-lib_dialects_freebsd_dlsof.h b/sysutils/lsof/files/patch-lib_dialects_freebsd_dlsof.h
new file mode 100644
index 000000000000..788ca976508f
--- /dev/null
+++ b/sysutils/lsof/files/patch-lib_dialects_freebsd_dlsof.h
@@ -0,0 +1,10 @@
+--- lib/dialects/freebsd/dlsof.h.orig	2026-03-25 16:34:30 UTC
++++ lib/dialects/freebsd/dlsof.h
+@@ -147,6 +147,7 @@ int getmntinfo(struct statfs **, int);
+ #    include <netinet/ip.h>
+ #    include <net/route.h>
+ #    define _WANT_INPCB /* for FreeBSD 12 and above */
++#    include <sys/ck.h>
+ #    include <netinet/in_pcb.h>
+ #    include <netinet/ip_var.h>
+ #    include <netinet/tcp.h>