problem in setting pctincrease to 0

[vr76413]

Iam sorry...

i corrected eh syntax....but the error continues..
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SQL> alter tablespace temp default storage (pctincrease 0);
alter tablespace temp default storage (pctincrease 0)
*
ERROR at line 1:
ORA-03217: invalid option for alter of TEMPORARY TABLESPACE

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thanks
Ron