Mismatched parentheses when creating a rule with multiple action queries

PostgreSQL 7.3.2.
The parser does not seem to like semicolon between action queries:
(Mismatched parentheses)

So, it makes impossible to create a rule with more than one action
query.
Or am I missing something?

CREATE RULE my_insert_rule AS ON INSERT  TO my_view DO INSTEAD (     INSERT INTO my_table1... ;     INSERT INTO
my_table2...); 


The rule with just one action works fine: DO INSTEAD (     INSERT INTO my_table1...  );