diff --git a/catalogue/itemsearch.pl b/catalogue/itemsearch.pl
index 6f59ae9baa..7f58423602 100755
--- a/catalogue/itemsearch.pl
+++ b/catalogue/itemsearch.pl
@@ -119,14 +119,21 @@ if ( defined $format ) {
         filters => [],
     };
 
-    foreach my $p (qw(homebranch holdingbranch location itype ccode issues datelastborrowed notforloan itemlost withdrawn)) {
-        if (my @q = $cgi->multi_param($p)) {
-            if ($q[0] ne '') {
+    foreach
+        my $p (qw(homebranch holdingbranch location itype ccode issues datelastborrowed notforloan itemlost withdrawn))
+    {
+        my @q;
+        @q = $cgi->multi_param( $p . "[]" );
+        if ( scalar @q == 0 ) {
+            @q = $cgi->multi_param($p);
+        }
+        if (@q) {
+            if ( $q[0] ne '' ) {
                 my $f = {
                     field => $p,
                     query => \@q,
                 };
-                if (my $op = scalar $cgi->param($p . '_op')) {
+                if ( my $op = scalar $cgi->param( $p . '_op' ) ) {
                     $f->{operator} = $op;
                 }
                 push @{ $filter->{filters} }, $f;
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/itemsearch.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/itemsearch.tt
index 89006963d5..862fbf5a72 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/itemsearch.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/itemsearch.tt
@@ -461,10 +461,11 @@
                     type: 'POST',
                     data: function ( d ) {
                         for (i in params) {
-                            if (! d.hasOwnProperty(params[i].name) ) {
-                                d[params[i].name] = [];
+                            if(d[params[i].name]){
+                                d[params[i].name] = [].concat(d[params[i].name], params[i].value);
+                            }else{
+                                d[params[i].name] = params[i].value;
                             }
-                            d[params[i].name].push(params[i].value);
                         }
                         d.format = 'json';
                         d.columns = JSON.stringify( d.columns );