Ckeditor counter plugin shows one less character initially

Hi,
I am using ckeditor character count plugin. Now when i type the first character in the text area counter shows 0 characters. Now after completion of whole word it shows one character less than the actual length.
After completion of one word if i give one blank space at that time it will increase one more count and later if i remove the space then it will show the proper character count.

Entire scenario:
I type t : Character count:0
I type te : Character count:1
I type tes : Character count:2
I type test : Character count:3

I give one blank space so
test Character count: 4

I remove blank space
test Character count: 4

I would like to know when i type only test word then it shows only three characters instead of four.
How can i fix it ?