2 files changed, 2 insertions, 2 deletions

diff --git a/lib/libc/stdlib/tfind.c b/lib/libc/stdlib/tfind.c
index 18e0a30afdac..680ff327bcdd 100644
--- a/lib/libc/stdlib/tfind.c
+++ b/lib/libc/stdlib/tfind.c
@@ -28,7 +28,7 @@ __FBSDID("$FreeBSD$");
 void *
 tfind(vkey, vrootp, compar)
 	const void *vkey;		/* key to be found */
-	void **vrootp;			/* address of the tree root */
+	void * const *vrootp;		/* address of the tree root */
 	int (*compar)(const void *, const void *);
 {
 	node_t **rootp = (node_t **)vrootp;
diff --git a/lib/libc/stdlib/tsearch.3 b/lib/libc/stdlib/tsearch.3
index 8ff0179cc2c4..cfe39c20e0fd 100644
--- a/lib/libc/stdlib/tsearch.3
+++ b/lib/libc/stdlib/tsearch.3
@@ -38,7 +38,7 @@
 .Ft void *
 .Fn tdelete "const void * restrict key" "void ** restrict rootp" "int (*compar) (const void *, const void *)"
 .Ft void *
-.Fn tfind "const void *key" "void **rootp" "int (*compar) (const void *, const void *)"
+.Fn tfind "const void *key" "void * const *rootp" "int (*compar) (const void *, const void *)"
 .Ft void *
 .Fn tsearch "const void *key" "void **rootp" "int (*compar) (const void *, const void *)"
 .Ft void