OSDev.org

That address is not page aligned, 0x1000 = 4096 bytes, the pages are in the pattern:
0x0
0x1000
0x2000
0x3000
0x4000
0x5000
0x6000
0x7000
0x8000
0x9000
0x10000
If the last 3 numbers of the hex are not 0s before the flags are set then the address IS NOT page aligned.

I am sorry for being silly
I just noticed it myself before i saw your post and deleted mine.
Forgot, that my hex calculator would not tell me about the remainder of a division...