55 MTT near bubble: Hand vs big stack with Kqs

[DMACM]

The big stack had been calling a lot of raises so I didnt put him on AK. I figured I'd check raise him all in on the flop. He called me with the nut flush draw and knocked me out [img]/images/graemlins/frown.gif[/img]. Did I bring this on myself by not betting it out myself?

56 left top 40 pay

Party Poker No-Limit Hold'em Tourney, Big Blind is t400 (9 handed) converter

UTG (t2180)
UTG+1 (t6097)
MP1 (t9630)
Hero (t6850)
MP3 (t2038)
CO (t9479)
Button (t19913)
SB (t3790)
BB (t1780)

Preflop: Hero is MP2 with K[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to t1000</font>, <font color="#666666">2 folds</font>, Button calls t1000, <font color="#666666">2 folds</font>.

Flop: (t2600) 4[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets t1300</font>, hero is all-In [5850]