diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-edit.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-edit.tt
index 8c5ba5d8db..172a015e6e 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-edit.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-edit.tt
@@ -307,7 +307,7 @@ $(document).ready(function() {
 
         <hr>
         <div class="subfield_line">
-            <label for="number_of_copies">Number of copies to be made of this item </label> <input type="text" id="number_of_copies[% newserialloo.serialid | html %][% newserialloo.countitems | html %][% iteminformatio.subfield | html %][% iteminformatio.random | html %]" name="number_of_copies" value="1" size="2"> <span class="hint">The barcode you enter will be incremented for each additional item.</p>
+            <label for="number_of_copies">Number of copies to be made of this item </label> <input type="text" id="number_of_copies[% newserialloo.serialid | html %][% newserialloo.countitems | html %][% iteminformatio.subfield | html %][% iteminformatio.random | html %]" name="number_of_copies" value="1" maxlength="3" size="2"> <span class="hint">Number of copies limited to under 1000. The barcode you enter will be incremented for each additional item.</p>
         </div>
 
         <input type="hidden" name="moditem" value="" /> 
@@ -458,7 +458,7 @@ $(document).ready(function() {
 
         <hr>
         <div class="subfield_line">
-            <label for="number_of_copies">Number of copies to be made of this item </label> <input type="text" id="number_of_copies[% newserialloo.serialid | html %][% newserialloo.countitems | html %][% iteminformatio.subfield | html %][% iteminformatio.random | html %]" name="number_of_copies" value="1" size="2"> <span class="hint">The barcode you enter will be incremented for each additional item.</p>
+            <label for="number_of_copies">Number of copies to be made of this item </label> <input type="text" id="number_of_copies[% newserialloo.serialid | html %][% newserialloo.countitems | html %][% iteminformatio.subfield | html %][% iteminformatio.random | html %]" name="number_of_copies" value="1" maxlength="3" size="2"> <span class="hint">Number of copies limited to under 1000. The barcode you enter will be incremented for each additional item.</p>
         </div>
 
         <input type="hidden" name="moditem" value="" /> 
diff --git a/serials/serials-edit.pl b/serials/serials-edit.pl
index b80fa46f21..060bfbb19f 100755
--- a/serials/serials-edit.pl
+++ b/serials/serials-edit.pl
@@ -77,6 +77,7 @@ use Koha::Items;
 use Koha::Serial::Items;
 
 use List::MoreUtils qw( uniq );
+use List::Util qw( min );
 
 my $query           = CGI->new();
 my $dbh             = C4::Context->dbh;
@@ -277,7 +278,7 @@ if ( $op and $op eq 'serialchangestatus' ) {
         my @serials      = $query->multi_param('serial');
         my @bibnums      = $query->multi_param('bibnum');
         my @itemid       = $query->multi_param('itemid');
-        my @num_copies   = $query->multi_param('number_of_copies');
+        my @num_copies   = map { min($_, 1000); } $query->multi_param('number_of_copies');
 
         #Rebuilding ALL the data for items into a hash
         # parting them on $itemid.