diff --git a/lib/libc/gen/sysctl.3 b/lib/libc/gen/sysctl.3
index 494b88cb97..430ae903fa 100644
--- a/lib/libc/gen/sysctl.3
+++ b/lib/libc/gen/sysctl.3
@@ -431,12 +431,24 @@ The maximum number of supplemental groups.
 .It Dv KERN_NISDOMAINNAME
 The name of the current YP/NIS domain.
 .It Dv KERN_OSRELDATE
-The system release date in YYYYMM format
-(January 1996 is encoded as 199601).
+The same as
+.Ql KERN_OSREV .
 .It Dv KERN_OSRELEASE
 The system release string.
 .It Dv KERN_OSREV
-The system revision string.
+The system revision number in base-10 format
+.Ar M Ns Ar mmm Ns Ar pp ,
+representing the following components:
+.Bl -column "Code" "Component" -offset indent
+.It Sy "Code" Ta Sy "Component"
+.It Dv M Ta major
+.It Dv mmm Ta minor
+.It Dv pp Ta patch
+.El
+.Pp
+The minor component is an
+.Sy even Ns -number for release and
+.Sy odd Ns -number for development branches.
 .It Dv KERN_OSTYPE
 The system type string.
 .It Dv KERN_POSIX1
diff --git a/sbin/sysctl/sysctl.8 b/sbin/sysctl/sysctl.8
index 432639df32..193e23fc3b 100644
--- a/sbin/sysctl/sysctl.8
+++ b/sbin/sysctl/sysctl.8
@@ -190,7 +190,7 @@ denote
 .It "kern.filedelay	integer	yes"
 .It "kern.dirdelay	integer	yes"
 .It "kern.metadelay	integer	yes"
-.It "kern.osreldate	string	no"
+.It "kern.osreldate	integer	no"
 .It "kern.bootfile	string	yes"
 .It "kern.corefile	string	yes"
 .It "kern.dumpdev	dev_t	yes"