diff --git a/core/memoize/memoize-docs.factor b/core/memoize/memoize-docs.factor
index 426bd2916c..f147e3c7c4 100644
--- a/core/memoize/memoize-docs.factor
+++ b/core/memoize/memoize-docs.factor
@@ -26,4 +26,8 @@ HELP: MEMO:
 { $values { "word" "a new word to define" } { "definition" "a word definition" } }
 { $description "Defines the given word at parse time as one which memoizes its output given a particular input. The stack effect is mandatory." } ;
 
-{ define-memoized POSTPONE: MEMO: } related-words
+HELP: MEMO[
+{ $syntax "MEMO[ elements... ]" }
+{ $description "Defines the given literal quotation as one which memoizes its outputs given a particular input." } ;
+
+{ define-memoized POSTPONE: MEMO: POSTPONE: MEMO[ } related-words
diff --git a/core/memoize/memoize-tests.factor b/core/memoize/memoize-tests.factor
index f67a1fefda..8615cc1d30 100644
--- a/core/memoize/memoize-tests.factor
+++ b/core/memoize/memoize-tests.factor
@@ -1,7 +1,8 @@
 ! Copyright (C) 2007, 2009 Slava Pestov, Daniel Ehrenberg.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: math kernel memoize tools.test parser generalizations
-prettyprint io.streams.string sequences eval namespaces see ;
+USING: calendar eval generalizations io.streams.string kernel
+math math.order memoize namespaces parser prettyprint see
+sequences threads tools.test tools.time ;
 IN: memoize.tests
 
 MEMO: fib ( m -- n )
@@ -22,7 +23,7 @@ MEMO: x ( a b c d e -- f g h i j )
 
 MEMO: see-test ( a -- b ) reverse ;
 
-{ "USING: memoize sequences ;\nIN: memoize.tests\nMEMO: see-test ( a -- b ) reverse ;\n" }
+{ "USING: sequences ;\nIN: memoize.tests\nMEMO: see-test ( a -- b ) reverse ;\n" }
 [ [ \ see-test see ] with-string-writer ]
 unit-test
 
@@ -33,3 +34,10 @@ unit-test
 [ sq ] ( a -- b ) memoize-quot "q" set
 
 { 9 } [ 3 "q" get call ] unit-test
+
+{ t } [
+    { 1/8 1/8 1/8 1/8 1/16 1/16 1/16 }
+    [ MEMO[ seconds sleep ] each ] benchmark
+    0.18e9 0.25e9 between?
+] unit-test
+