Prevent curl from timeout?

Hey I am using curl to get source of a HTML-document in a loop
that loops through about 1,000 pages. It works nice in the beginning...

But for some reason it times out... What I get is:

  0  156k    0     0    0     0      0      0 --:--:--  0:05:51 
--:--:--     0


And the counter just counts on forever...
How can I fix this?

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