How to put a label to right of a checkbox in bootstrap

I've been trying lots of ways to put a <input type="checkbox" id="123"/> infront of a label, but they're leaving a huge gap between theirselves. Any workaround? Here's my html:

<div class="row">
    <div class="col-sm-6">
        <div class="input-group input-group-sm">
            <input type="checkbox" id="ProcessingConsultantYN" value="0" />
            <label class="input-group-addon input-group-addon-pireus" aria-describedby="ProcessingConsultantYN" id="lbProcessingConsultant" for="ProcessingConsultantYN">Обработва се от Кредитен Консултант</label>
        </div>
    </div>
</div>

Here's how it looks when being displayed on the website and what I actually want to fix: