diff --git a/basis/help/html/html-tests.factor b/basis/help/html/html-tests.factor
index 61414cdfa2..3ba336be0b 100644
--- a/basis/help/html/html-tests.factor
+++ b/basis/help/html/html-tests.factor
@@ -2,3 +2,5 @@ IN: help.html.tests
 USING: help.html tools.test help.topics kernel ;
 
 [ ] [ "xml" >link help>html drop ] unit-test
+
+[ "article-foobar.html" ] [ "foobar" >link topic>filename ] unit-test
\ No newline at end of file
diff --git a/basis/help/html/html.factor b/basis/help/html/html.factor
index 09208749b9..fbfc42829e 100644
--- a/basis/help/html/html.factor
+++ b/basis/help/html/html.factor
@@ -1,11 +1,13 @@
 ! Copyright (C) 2008, 2009 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: io.encodings.utf8 io.encodings.ascii io.encodings.binary
+USING: io.encodings.utf8 io.encodings.binary
 io.files io.files.temp io.directories html.streams help kernel
 assocs sequences make words accessors arrays help.topics vocabs
 vocabs.hierarchy help.vocabs namespaces prettyprint io
 vocabs.loader serialize fry memoize unicode.case math.order
 sorting debugger html xml.syntax xml.writer math.parser ;
+FROM: io.encodings.ascii => ascii ;
+FROM: ascii => ascii? ;
 IN: help.html
 
 : escape-char ( ch -- )