diff --git a/basis/specialized-arrays/direct/functor/functor.factor b/basis/specialized-arrays/direct/functor/functor.factor
index 2cde26b731..14fb739947 100755
--- a/basis/specialized-arrays/direct/functor/functor.factor
+++ b/basis/specialized-arrays/direct/functor/functor.factor
@@ -20,7 +20,7 @@ SET-NTH [ T dup c-setter array-accessor ]
 WHERE
 
 TUPLE: A
-{ underlying alien read-only }
+{ underlying c-ptr read-only }
 { length fixnum read-only } ;
 
 : <A> ( alien len -- direct-array ) A boa ; inline
diff --git a/extra/sto/sto.factor b/extra/sto/sto.factor
new file mode 100644
index 0000000000..b43c9cc359
--- /dev/null
+++ b/extra/sto/sto.factor
@@ -0,0 +1,20 @@
+
+USING: kernel lexer parser words quotations compiler.units ;
+
+IN: sto
+
+! Use 'sto' to bind a value on the stack to a word.
+!
+! Example:
+!
+!   10 sto A
+
+: sto
+  \ 1quotation parsed
+  scan
+    current-vocab create
+    dup set-word
+  literalize parsed
+  \ swap parsed
+  [ define ] parsed
+  \ with-compilation-unit parsed ;                              parsing