diff --git a/administrator/modules/mod_login/tmpl/default.php b/administrator/modules/mod_login/tmpl/default.php
index 3d5b5c5f57fc5..3996deebe5992 100644
--- a/administrator/modules/mod_login/tmpl/default.php
+++ b/administrator/modules/mod_login/tmpl/default.php
@@ -88,7 +88,7 @@
 		<div class="control-group">
 			<div class="controls">
 				<div class="btn-group">
-					<button tabindex="3" class="btn btn-primary btn-block btn-large">
+					<button tabindex="3" class="btn btn-primary btn-block btn-large login-button">
 						<span class="icon-lock icon-white"></span> <?php echo JText::_('MOD_LOGIN_LOGIN'); ?>
 					</button>
 				</div>
diff --git a/modules/mod_login/tmpl/default.php b/modules/mod_login/tmpl/default.php
index 08b6c0221fdb9..fcd3b1c962c94 100644
--- a/modules/mod_login/tmpl/default.php
+++ b/modules/mod_login/tmpl/default.php
@@ -90,7 +90,7 @@
 		<?php endif; ?>
 		<div id="form-login-submit" class="control-group">
 			<div class="controls">
-				<button type="submit" tabindex="0" name="Submit" class="btn btn-primary"><?php echo JText::_('JLOGIN'); ?></button>
+				<button type="submit" tabindex="0" name="Submit" class="btn btn-primary login-button"><?php echo JText::_('JLOGIN'); ?></button>
 			</div>
 		</div>
 		<?php