Incorrect closing of img class tag

File : socialmedia.widgets.inc
Function : socialmedia_base_platforms

'profile-button' => '<a href="[?profile_url=[socialmedia:sm-facebook_url]?]" title="Visit [?profile_username=[socialmedia:sm-facebook_username]?] on Facebook"[?link-target= target="{[socialmedia:sm-default_link_target_profile]}"?][?link-rel= rel="{[socialmedia:sm-default_link_rel_profile]}"?]><img src="[?icon-path=[socialmedia:sm-facebook_icon-path]?]" alt="Facebook icon" class="></a>',

I have fixed above as below

'profile-button' => '<a href="[?profile_url=[socialmedia:sm-facebook_url]?]" title="Visit [?profile_username=[socialmedia:sm-facebook_username]?] on Facebook"[?link-target= target="{[socialmedia:sm-default_link_target_profile]}"?][?link-rel= rel="{[socialmedia:sm-default_link_rel_profile]}"?]><img src="[?icon-path=[socialmedia:sm-facebook_icon-path]?]" alt="Facebook icon" class=""></a>',

The incorrect closing tag break the widgets sometimes.

Thanks