diff --git a/share/man/man3/tree.3 b/share/man/man3/tree.3
index 0d4051a40622..1cd6b2b0fcfc 100644
--- a/share/man/man3/tree.3
+++ b/share/man/man3/tree.3
@@ -431,7 +431,7 @@ macro:
 .Pp
 The
 .Fn RB_EMPTY
-macro should be used to check whether a splay tree is empty.
+macro should be used to check whether a red-black tree is empty.
 .Sh NOTES
 Trying to free a tree in the following way is a common error:
 .Bd -literal -offset indent