RDoc problem

My method list keeps coming out like this:

[snip...]

each (Hash)
each (Hash)
each (Hash)
each_by (Enumerable)
each_by (Array)
each_by (Enumerable)
each_by (Array)
each_char (String)
each_char (String)
each_char (String)
each_combination (Array)
each_combination (Array)
each_combination (Array)
each_pair (Array)
each_pair (Array)
each_pair (Array)

[...snip]

I'm using the --merge and --promiscuous options. Any suggestions?

Thanks,
T.