debian file is sources.list, not source.list.

downloads.php

@@ -22,7 +22,7 @@ print _("    If you use Debian unstable do")." <i>apt-get install gajim</i>\n";
 print ("    <br/>\n");
 printf(_("   The Debian package of %s is "), "0.16-alpha2");
 print "<a href=\"ftp://ftp.gajim.org/debian/dists/unstable/main/binary-all/gajim_0.16~alpha2-1_all.deb\">"._("here")."</a>.<br />\n";
-print _("    A daily package from mercurial is also built. To use it, remove gajim")." (<i>apt-get remove gajim</i>), "._("add this line to your")." /etc/apt/source.list:\n";
+print _("    A daily package from mercurial is also built. To use it, remove gajim")." (<i>apt-get remove gajim</i>), "._("add this line to your")." /etc/apt/sources.list:\n";
 print ("    <br/>\n");
 print ("    <i>deb ftp://ftp.gajim.org/debian unstable main</i>\n");
 print ("    <br/>\n");