cbstats timings fails

/opt/couchbase/bin/cbstats localhost:11210 timings

Traceback (most recent call last):
File "/opt/couchbase/lib/python/cbstats", line 356, in <module>
main()
File "/opt/couchbase/lib/python/cbstats", line 353, in main
c.execute()
File "/opt/couchbase/lib/python/clitool.py", line 43, in execute
f[0](mc, *args[2:], **opts._dict_)
File "/opt/couchbase/lib/python/cbstats", line 38, in g
f(*args[:n])
File "/opt/couchbase/lib/python/cbstats", line 177, in stats_timings
histograms(mc, mc.stats('timings'))
File "/opt/couchbase/lib/python/cbstats", line 29, in g
if kwargs['allBuckets']:
KeyError: 'allBuckets'