Table cell text overlapes with table border ...docbook 1.74.3

Hi,

 

I am using docbook version 1.74.3 for PDF report generation.

 

I have 50 chnaracter long text in a table cell but it overlapes with the table border.

 

for example : 

 

1. I have text "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789ABCDEFGHIJKLMNO" in one table cell but it overlapes with the table border and goes outside of the table.

 

2. But if I modify it as "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNO123456789" then it does not overlap with the border but after 26 character it breaks and goes to second line within the same cell as shown below.

 

ABCDEFGHIJKLMNOPQRSTUVWXYZ-

ABCDEFGHIJKLMNO123456789

 

how can I make the text string shown in first option to stay within the same cell so that it does not overlap with the table border.

 

Thanks,

BRAMANI.