diff --git a/packages/CLPBN/clpbn/evidence.yap b/packages/CLPBN/clpbn/evidence.yap
index c8a45e26d..b04801e2c 100644
--- a/packages/CLPBN/clpbn/evidence.yap
+++ b/packages/CLPBN/clpbn/evidence.yap
@@ -11,11 +11,7 @@
 		 put_evidence/2
 		]).
 
-:- use_module(library(clpbn),
-		[{}/1,
-		 clpbn_flag/3,
-		 set_clpbn_flag/2
-		]).
+:- use_module(library(clpbn)).
 
 :- use_module(library('clpbn/dists'),
 		[get_dist/4]).
diff --git a/packages/CLPBN/clpbn/graphs.yap b/packages/CLPBN/clpbn/graphs.yap
index c13afcb7b..7c9d2e0a9 100644
--- a/packages/CLPBN/clpbn/graphs.yap
+++ b/packages/CLPBN/clpbn/graphs.yap
@@ -12,6 +12,8 @@
 :- use_module(library('clpbn/dists'),
 		[get_dist/4]).
 
+:- use_module(library(atts)).
+
 :- attribute node/0.
 
 clpbn2graph(Vs) :-