diff --git a/index.bs b/index.bs
index a082507..37ddf7f 100644
--- a/index.bs
+++ b/index.bs
@@ -130,7 +130,7 @@ result of [=starting a new parallel queue=]. This queue is to be used for all
 file sytem operations.
 
 <div algorithm>
-To <dfn for="file system entry/lock">take a lock</dfn> with a |value| of
+To <dfn for="file system entry">take a lock</dfn> with a |value| of
 "`exclusive`" or "`shared`" on a given [=/file system entry=] |entry|:
 
 1. Let |lock| be the |entry|'s [=file system entry/lock=].