hyphenation problem

[C.Friedrich]

Hi,

There is a passage in my thesis which looks like this:
"bla bla bla-, bla bla"
LATEX thinks that the dash is a hyphen and does a line break BEFORE the comma.
(I didn't write it with CTRL- of course.) So the next line begins with a comma,
which is far from what I intended.
I found a workaround simply by writing the dash in the math environment, but
this shouldn't be the way to prevent this.

Any ideas?

Regards
Christoph Friedrich