diff --git a/share/man/man9/khelp.9 b/share/man/man9/khelp.9
index 39515eef237c..d619f385d513 100644
--- a/share/man/man9/khelp.9
+++ b/share/man/man9/khelp.9
@@ -27,7 +27,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd February 15, 2011
+.Dd October 1, 2024
 .Dt KHELP 9
 .Os
 .Sh NAME
@@ -48,8 +48,8 @@
 .Fn "int khelp_destroy_osd" "struct osd *hosd"
 .Fn "int32_t khelp_get_id" "char *hname"
 .Fn "void * khelp_get_osd" "struct osd *hosd" "int32_t id"
-.Fn "int khelp_add_hhook" "struct hookinfo *hki" "uint32_t flags"
-.Fn "int khelp_remove_hhook" "struct hookinfo *hki"
+.Fn "int khelp_add_hhook" "const struct hookinfo *hki" "uint32_t flags"
+.Fn "int khelp_remove_hhook" "const struct hookinfo *hki"
 .Fn KHELP_DECLARE_MOD "hname" "hdata" "hhooks" "version"
 .Fn KHELP_DECLARE_MOD_UMA "hname" "hdata" "hhooks" "version" "ctor" "dtor"
 .Sh DESCRIPTION
diff --git a/sys/kern/kern_khelp.c b/sys/kern/kern_khelp.c
index 1ab56780f394..4a7e93ff69fa 100644
--- a/sys/kern/kern_khelp.c
+++ b/sys/kern/kern_khelp.c
@@ -253,7 +253,7 @@ khelp_get_id(char *hname)
 }
 
 int
-khelp_add_hhook(struct hookinfo *hki, uint32_t flags)
+khelp_add_hhook(const struct hookinfo *hki, uint32_t flags)
 {
 	int error;
 
@@ -267,7 +267,7 @@ khelp_add_hhook(struct hookinfo *hki, uint32_t flags)
 }
 
 int
-khelp_remove_hhook(struct hookinfo *hki)
+khelp_remove_hhook(const struct hookinfo *hki)
 {
 	int error;
 
diff --git a/sys/sys/khelp.h b/sys/sys/khelp.h
index 2ef45806c35a..7aadb6a58faa 100644
--- a/sys/sys/khelp.h
+++ b/sys/sys/khelp.h
@@ -70,8 +70,8 @@ void *	khelp_get_osd(struct osd *hosd, int32_t id);
 
 int32_t	khelp_get_id(char *hname);
 
-int	khelp_add_hhook(struct hookinfo *hki, uint32_t flags);
+int	khelp_add_hhook(const struct hookinfo *hki, uint32_t flags);
 
-int	khelp_remove_hhook(struct hookinfo *hki);
+int	khelp_remove_hhook(const struct hookinfo *hki);
 
 #endif /* _SYS_KHELP_H_ */