using sed

I'm trying to use sed to append "/0.0.0.0" to the end of each line in a file

sed -i 's;$;/0.0.0.0;g' file.txt

problem is most of the time, "/0.0.0.0" is made as a new line after the existing ones, instead of being appended to the ends of the lines

so instead of:
text/0.0.0.0

I get:
text
/0.0.0.0

>>27
Oh, silly /prog/lodyte.  Why must you project your inadequacy onto others?
That's what you're doing

Now it seems they let in the average five-year-old like myself who believes that answers only come from some mystical place beyond the stars.
fixed.

If you don't know how to do something, you can just say so.
Acting like you do so you can feel better about yourself is just immature.