diff --git a/C4/Output.pm b/C4/Output.pm
index 09dc73d41d..e36ec30bdc 100644
--- a/C4/Output.pm
+++ b/C4/Output.pm
@@ -99,7 +99,7 @@ sub pagination_bar {
 	$base_url =~ s/$delim$//;		# remove trailing delim
 
     my $url = $base_url . (($base_url =~ m/$delim/ or $base_url =~ m/\?/) ? '&' : '?' ) . $startfrom_name . '=';
-    my $url_suffix;
+    my $url_suffix = '';
     while ( my ( $k, $v ) = each %$additional_parameters ) {
         $url_suffix .= '&' . URI::Escape::uri_escape_utf8($k) . '=' . URI::Escape::uri_escape_utf8($v);
     }