Autocomplete results

I have an autocompletion search bar

$( function() {
$('#results').hide();
$( "#SearchItem" ).autocomplete({
source: ""});

after selecting the items received I have to press enter twice to display the results.The first enter puts the selected resulted in input text, and the second enter sends the get request, I want to send the get request only by pressing enter once! P.S: I am using laravel in backend!

via Chebli Mohamed