diff --git a/extra/wordtimer/wordtimer-docs.factor b/extra/wordtimer/wordtimer-docs.factor
index 7d9de34252..47b85bb007 100644
--- a/extra/wordtimer/wordtimer-docs.factor
+++ b/extra/wordtimer/wordtimer-docs.factor
@@ -27,8 +27,15 @@ HELP: print-word-timings
 
 HELP: correct-for-timing-overhead
 { $description "attempts to correct the timings to take into account the overhead of the timing function. This is pretty error-prone but can be handy when you're timing words that only take a handful of milliseconds but are called a lot" } ;
+
+HELP: profile-vocab
+{ $values { "vocabspec" "string name of a vocab" }
+          { "quot" "a quotation to run" } }
+{ $description "Annotates the words in the vocab with timing code then runs the quotation. Finally resets the words and prints the timings information."
+} ;
+
     
 ARTICLE: "wordtimer" "Word Timer"
-"The " { $vocab-link "wordtimer" } " vocabulary measures accumulated execution time for words. You first annotate individual words with the " { $link add-timer } " word or whole vocabularies with " { $link add-timers } ". Then you reset the clock with " { $link reset-word-timer } " and execute your code. Finally you can view the timings with " { $link print-word-timings } ". If you have functions that are quick and called often you may want to " { $link correct-for-timing-overhead } ". To remove all the annotations in the vocab you can use " { $link reset-vocab } "." ;
+"The " { $vocab-link "wordtimer" } " vocabulary measures accumulated execution time for words. If you just want to profile the accumulated time taken by all words in a vocab you can use " { $vocab-link "profile-vocab" } ". If you need more fine grained control then do the following: First annotate individual words with the " { $link add-timer } " word or whole vocabularies with " { $link add-timers } ". Then reset the clock with " { $link reset-word-timer } " and execute your code. Finally you can view the timings with " { $link print-word-timings } ". If you have functions that are quick and called often you may want to " { $link correct-for-timing-overhead } ". To remove all the annotations in the vocab you can use " { $link reset-vocab } ". Alternatively if you just want to time the contents of a vocabulary you can use profile-vocab." ;
     
 ABOUT: "wordtimer"