diff --git a/src/wp-admin/plugins.php b/src/wp-admin/plugins.php
index 8b0fa10096..988cfa9325 100644
--- a/src/wp-admin/plugins.php
+++ b/src/wp-admin/plugins.php
@@ -380,7 +380,7 @@ if ( !empty($invalid) )
 	else
 		$errmsg = __('Plugin could not be activated because it triggered a <strong>fatal error</strong>.');
 	?>
-	<div id="message" class="updated"><p><?php echo $errmsg; ?></p>
+	<div id="message" class="error"><p><?php echo $errmsg; ?></p>
 	<?php
 		if ( !isset( $_GET['main'] ) && !isset($_GET['charsout']) && wp_verify_nonce($_GET['_error_nonce'], 'plugin-activation-error_' . $plugin) ) { ?>
 	<iframe style="border:0" width="100%" height="70px" src="<?php echo 'plugins.php?action=error_scrape&amp;plugin=' . esc_attr($plugin) . '&amp;_wpnonce=' . esc_attr($_GET['_error_nonce']); ?>"></iframe>
@@ -394,7 +394,7 @@ if ( !empty($invalid) )
 		delete_transient( 'plugins_delete_result_' . $user_ID );
 
 		if ( is_wp_error($delete_result) ) : ?>
-		<div id="message" class="updated"><p><?php printf( __('Plugin could not be deleted due to an error: %s'), $delete_result->get_error_message() ); ?></p></div>
+		<div id="message" class="error"><p><?php printf( __('Plugin could not be deleted due to an error: %s'), $delete_result->get_error_message() ); ?></p></div>
 		<?php else : ?>
 		<div id="message" class="updated"><p><?php _e('The selected plugins have been <strong>deleted</strong>.'); ?></p></div>
 		<?php endif; ?>