@@ 55,7 55,7 @@
(home-page "http://heasarc.gsfc.nasa.gov/fitsio/fitsio.html")
(synopsis "Library for reading and writing FITS files")
(description "CFITSIO provides simple high-level routines for reading and
-writing FITS (Flexible Image Transport System) files that insulate the
+writing @dfn{FITS} (Flexible Image Transport System) files that insulate the
programmer from the internal complexities of the FITS format. CFITSIO also
provides many advanced features for manipulating and filtering the information
in FITS files.")