diff --git a/filter/config.Y b/filter/config.Y
index 9cdc8159..3396669f 100644
--- a/filter/config.Y
+++ b/filter/config.Y
@@ -426,8 +426,8 @@ term:
  | '+' EMPTY '+' { $$ = f_new_inst(); $$->code = 'E'; $$->aux = T_PATH; }
  | '-' EMPTY '-' { $$ = f_new_inst(); $$->code = 'E'; $$->aux = T_CLIST; }
  | PREPEND '(' term ',' term ')' { $$ = f_new_inst(); $$->code = P('A','p'); $$->a1.p = $3; $$->a2.p = $5; } 
-/* | ADD '(' term, ',' term ')' { $$ = f_new_inst(); $$->code = P('C','a'); $$->a1.p = $3; $$->a2.p = $5; $$->aux = 'a'; } 
- | DELETE '(' term, ',' term ')' { $$ = f_new_inst(); $$->code = P('C','a'); $$->a1.p = $3; $$->a2.p = $5; $$->aux = 'd'; } */
+ | ADD '(' term ',' term ')' { $$ = f_new_inst(); $$->code = P('C','a'); $$->a1.p = $3; $$->a2.p = $5; $$->aux = 'a'; } 
+ | DELETE '(' term ',' term ')' { $$ = f_new_inst(); $$->code = P('C','a'); $$->a1.p = $3; $$->a2.p = $5; $$->aux = 'd'; }
  
 
 /* | term '.' LEN { $$->code = P('P','l'); } */
diff --git a/filter/test.conf b/filter/test.conf
index abe9d3fd..f266828a 100644
--- a/filter/test.conf
+++ b/filter/test.conf
@@ -50,7 +50,10 @@ clist l;
 
 	l = - empty -;
 	l = add( l, (1,2) );
-	print "Community list ", l;
+	l = add( l, (2,3) );
+	print "Community list (1,2) (2,3) ", l;
+	l = delete( l, (2,3) );
+	print "Community list (1,2) ", l;
 }
 
 function startup()