diff --git a/doc/reference/adaptors/adjacent_filtered.qbk b/doc/reference/adaptors/adjacent_filtered.qbk
index f8b4289..312646c 100644
--- a/doc/reference/adaptors/adjacent_filtered.qbk
+++ b/doc/reference/adaptors/adjacent_filtered.qbk
@@ -14,8 +14,8 @@
 * [*Precondition:]  The `value_type` of the range is convertible to both argument types of `bi_pred`.
 * [*Postcondition:] For all adjacent elements `[x,y]` in the returned range, `bi_pred(x,y)` is `true`.
 * [*Throws:] Whatever the copy constructor of `bi_pred` might throw.
-* [*Range Category:] __single_pass_range__
-* [*Return Type:] `boost::adjacent_filtered_range<typeof(rng)>`
+* [*Range Category:] __forward_range__
+* [*Return Type:] `boost::adjacent_filtered_range<decltype(rng), decltype(bi_pred)>`
 * [*Returned Range Category:] The minimum of the range category of `rng` and __forward_range__
 
 [section:adjacent_filtered_example adjacent_filtered example]