diff --git a/library/lineutils.yap b/library/lineutils.yap
index 76311d88d..cb4f64f82 100644
--- a/library/lineutils.yap
+++ b/library/lineutils.yap
@@ -8,7 +8,7 @@
 	   copy_line/2,
 	   filter/3,
 	   file_filter/3,
-	   process/2,
+	   process/2
 	  ]).
 
 :- meta_predicate filter(+,+,:), file_filter(+,+,:), process(+,:).
diff --git a/pl/threads.yap b/pl/threads.yap
index daa5a511b..1782a9a7a 100644
--- a/pl/threads.yap
+++ b/pl/threads.yap
@@ -26,7 +26,7 @@
 :- initialization('$init_thread0').
 
 '$init_thread0' :-
-	no_threads, !,
+	'$no_threads', !,
 	recorda('$thread_alias', [0|main], _).
 '$init_thread0' :-
 	recorda('$thread_defaults', [0, 0, 0, false, true], _),