diff --git a/src/prolog/lib/freeze.pl b/src/prolog/lib/freeze.pl
index cca3888d..2fae5976 100644
--- a/src/prolog/lib/freeze.pl
+++ b/src/prolog/lib/freeze.pl
@@ -22,5 +22,6 @@ freeze(X, Goal) :-
     Fresh = X.
 
 attribute_goals(Var) -->
-    { get_atts(Var, frozen(Goals)) },
+    { get_atts(Var, frozen(Goals)),
+      put_atts(Var, -frozen(_)) },
     [freeze(Var, Goals)].