diff --git a/library/apply_macros.yap b/library/apply_macros.yap
index a2f2eaf55..73ac514fd 100644
--- a/library/apply_macros.yap
+++ b/library/apply_macros.yap
@@ -4,6 +4,8 @@
 %   Purpose: Macros to apply a predicate to all elements
 %            of a list or to all sub-terms of a term.
 
+:- module(apply_macros, []).
+
 :- reexport(maplist, [selectlist/3,
 			 checklist/2,
 			 maplist/2,
diff --git a/library/wundgraphs.yap b/library/wundgraphs.yap
index 10f07f032..207c3c0b6 100644
--- a/library/wundgraphs.yap
+++ b/library/wundgraphs.yap
@@ -11,9 +11,7 @@
 	    wundgraph_del_edges/3,
 	    wundgraph_del_vertex/3,
 	    wundgraph_edges/2,
-	    wundgraph_neighbors/3,
 	    wundgraph_neighbours/3,
-	    wundgraph_wneighbors/3,
 	    wundgraph_wneighbours/3,
 	    wundgraph_min_tree/3,
 	    wundgraph_max_tree/3]).