Force usage of temporary tablespace

Hello everyone,

I had two temporary tablespaces in database:

Tablespace ID = 1
Name = TEMPSPACE1
Type = System managed space
Contents = System Temporary data
State = 0x0000
Detailed explanation:
Normal

Tablespace ID = 6
Name = TS_MP1TEMP
Type = System managed space
Contents = System Temporary data
State = 0x0000
Detailed explanation:
Normal

I created one more temporary tablespace with corrected EXTENTSIZE value to reflect my storage configuration. However DB2 does not use it, how can I force its' usage?

Deployment: Db2 v10.1Fp2 purescale on RHEL6.3