diff --git a/src/builtin/builtins.pl b/src/builtin/builtins.pl
index b6dcda6..9b4d15a 100644
--- a/src/builtin/builtins.pl
+++ b/src/builtin/builtins.pl
@@ -1693,8 +1693,10 @@
 %:- public char_code/2.                    written in Java
 %:- public number_chars/2, number_codes/2. written in Java
 :- public name/2.
-:- public regex/3.
-:- public regex/2.
+%:- public regex_compile/2.                written in Java
+%:- public regex_match/3.                  written in Java
+:- public regex_matches/3.
+:- public regex_matches/2.
 
 sub_atom(Atom, Before, Length, After, Sub_atom) :-
     atom_concat(AtomL, X, Atom),
@@ -1716,20 +1718,20 @@
 	;   illarg(type(list(char)), name(Constant,Chars), 2)
 	).
 
-regex(_, [], _) :- !, fail.
-regex(Pattern, List, Result) :-
+regex_matches(_, [], _) :- !, fail.
+regex_matches(Pattern, List, Result) :-
 	List = [_ | _],
 	!,
 	regex_list(Pattern, List, Result).
-regex(Pattern, String, Result) :-
+regex_matches(Pattern, String, Result) :-
 	atom(String),
 	regex_compile(Pattern, Matcher),
 	regex_match(Matcher, String, Result).
 
-regex(Pattern, String) :-
-	once(regex(Pattern, String, _)).
+regex_matches(Pattern, String) :-
+	once(regex_matches(Pattern, String, _)).
 
-regex_list(Pattern, [H | _ ], Result) :- regex(Pattern, H, Result).
+regex_list(Pattern, [H | _ ], Result) :- regex_matches(Pattern, H, Result).
 regex_list(Pattern, [_ | Ls], Result) :- regex_list(Pattern, Ls, Result).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%