diff --git a/include/vlc_poll.h b/include/vlc_poll.h
index 7994ff1dcb..36b22a8ade 100644
--- a/include/vlc_poll.h
+++ b/include/vlc_poll.h
@@ -31,7 +31,7 @@
 
 /**
  * \ingroup os
- * \defgroup thread Poll implementations
+ * \defgroup thread_poll Poll implementations
  * @{
  * \file
  * Poll implementations
@@ -96,4 +96,6 @@ static inline int vlc_poll (struct pollfd *fds, unsigned nfds, int timeout)
 
 #endif
 
+/** @} */
+
 #endif /* !VLC_POLL_H_ */