Logrotate appending file name with a “.1”

Logrotate appending file name with a ".1"

For some reason our tomcatlogs are being appended with a .1 when logrotate
runs. e.g: file "tcl-2013-08-16.0.log" becomes "tcl-2013-08-16.0.1.log". I
am struggling to find what setting is adding the ".1" before the ".log"
part of the file name. Below is a copy of the settings file from
/etc/logrotate.d/:
extension .log
rotate 52
daily
nocreate
nodateext
missingok
notifempty
compress
delaycompress
Below is the config in /etc/logrotate.conf:
weekly
rotate 52
create
dateext
compress
delaycompress
include /etc/logrotate.d
What am I missing here?
Thanks, Nath