libwsutil.so.0 => not found running tshark

[Jeffs <jeffs () speakeasy net>]

Have a standard install of wireshark on backtrack 4 which runs fine.

However, when attempting to run tshark I get the following message:

tshark: error while loading shared libraries: libwsutil.so.0: cannot 
open shared object file: No such file or directory

an ldd of tshark shows libwsutil.so.0 => not found

How does one go about getting this installed?

Thank you in advance.
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