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-rw-r--r--multiple-select.js3
1 files changed, 2 insertions, 1 deletions
diff --git a/multiple-select.js b/multiple-select.js
index 8f249a5..db46cac 100644
--- a/multiple-select.js
+++ b/multiple-select.js
@@ -185,7 +185,8 @@
$group.append([
'<li class="group">',
sprintf('<label class="optgroup %s" data-group="%s">', disabled ? 'disabled' : '', group),
- this.options.hideOptgroupCheckboxes ? '' : sprintf('<input type="checkbox" %s %s>',
+ this.options.hideOptgroupCheckboxes || this.options.single ? '' :
+ sprintf('<input type="checkbox" %s %s>',
this.selectGroupName, disabled ? 'disabled="disabled"' : ''),
label,
'</label>',