diff --git a/extra/parser-combinators/regexp/regexp-tests.factor b/extra/parser-combinators/regexp/regexp-tests.factor
index 64feb0903c..78abd8b38a 100755
--- a/extra/parser-combinators/regexp/regexp-tests.factor
+++ b/extra/parser-combinators/regexp/regexp-tests.factor
@@ -1,4 +1,4 @@
-USING: regexp tools.test kernel ;
+USING: parser-combinators.regexp tools.test kernel ;
 IN: parser-combinators.regexp.tests
 
 [ f ] [ "b" "a*" f <regexp> matches? ] unit-test