diff --git a/collects/scribblings/scribble/how-to.scrbl b/collects/scribblings/scribble/how-to.scrbl
index cee2c9a9..2e66bd9e 100644
--- a/collects/scribblings/scribble/how-to.scrbl
+++ b/collects/scribblings/scribble/how-to.scrbl
@@ -283,11 +283,11 @@ manual:
   @(require scribble/manual
             (for-label scheme))
   @(define ref-src
-     '(lib "scribblings/reference/reference.scrbl"))]
+     '(lib "scribblings/reference/reference.scrbl"))
 
   @title{My Library}
 
-  See also @italic{@secref[#:doc reference-src]{pairs}}.
+  See also @italic{@secref[#:doc ref-src]{pairs}}.
 EOS
 ]
 
diff --git a/collects/scribblings/scribble/style.scrbl b/collects/scribblings/scribble/style.scrbl
index 01d1c04d..388b406e 100644
--- a/collects/scribblings/scribble/style.scrbl
+++ b/collects/scribblings/scribble/style.scrbl
@@ -103,3 +103,7 @@ for quotation marks that are part of code.
 
 Do not use a citation reference (as created by @scheme[cite]) as a
 noun; use it as an annotation.
+
+Do not start a sentence with a Scheme variable name, since it is
+normally lowercase. For example, use ``The @scheme[_thing] argument
+is...'' instead of ``@scheme[_thing] is...''