[TYPO3] Change title only of one page with TS

[Cray Flatline]

I'm rewriting page titles with such script

config.noPageTitle = 1
page.headerData.1 = TEXT
page.headerData.1 {
   field = title
   noTrimWrap = |<title>|, additional text </title>|
}


But I need to rewrite title ONLY of root page (id=1) to "Root title 
text". Can somebody help me with it? I tried to make it with "if {}" in 
above script but it didn't work. I'm a newbie in TS, so please help me. :-)

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WBR, Cray Flatline