---
opac/opac-search.pl | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/opac/opac-search.pl b/opac/opac-search.pl
index 03ca39a..ae7f4ea 100755
--- a/opac/opac-search.pl
+++ b/opac/opac-search.pl
@@ -632,9 +632,9 @@ if (defined $barshelves) {
my $content_type;
-if ($cgi->param('format') =~ /rss/) {
+if ($cgi->param('format') && $cgi->param('format') =~ /rss/) {
$content_type = 'rss'
-} elsif ($cgi->param('format') =~ /atom/) {
+} elsif ($cgi->param('format') && $cgi->param('format') =~ /atom/) {
$content_type = 'atom'
} else {
$content_type = 'html'
--
1.5.6.5
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