diff --git a/phpBB/adm/style/acp_main.html b/phpBB/adm/style/acp_main.html
index bb39ffe050..f5b030d954 100644
--- a/phpBB/adm/style/acp_main.html
+++ b/phpBB/adm/style/acp_main.html
@@ -26,6 +26,12 @@
 		</div>
 	<!-- ENDIF -->
 
+	<!-- IF S_SEARCH_INDEX_MISSING -->
+		<div class="errorbox">
+			<h3>{L_WARNING}</h3>
+			<p>{L_NO_SEARCH_INDEX}</p>
+		</div>
+	<!-- ENDIF -->
 
 	<!-- IF S_REMOVE_INSTALL -->
 		<div class="errorbox">
diff --git a/phpBB/includes/acp/acp_main.php b/phpBB/includes/acp/acp_main.php
index eecd8c72dc..f01cba0bcc 100644
--- a/phpBB/includes/acp/acp_main.php
+++ b/phpBB/includes/acp/acp_main.php
@@ -620,6 +620,22 @@ class acp_main
 			$template->assign_var('S_REMOVE_INSTALL', true);
 		}
 
+		// Warn if no search index is created
+		if ($config['num_posts'] && class_exists($config['search_type']))
+		{
+			$error = false;
+			$search_type = $config['search_type'];
+			$search = new $search_type($error, $phpbb_root_path, $phpEx, $auth, $config, $db, $user);
+
+			if (!$search->index_created())
+			{
+				$template->assign_vars(array(
+					'S_SEARCH_INDEX_MISSING'	=> true,
+					'L_NO_SEARCH_INDEX'			=> $user->lang('NO_SEARCH_INDEX', $search->get_name(), '<a href="' . append_sid("{$phpbb_admin_path}index.$phpEx", 'i=acp_search&amp;mode=index') . '">', '</a>'),
+				));
+			}
+		}
+
 		if (!defined('PHPBB_DISABLE_CONFIG_CHECK') && file_exists($phpbb_root_path . 'config.' . $phpEx) && phpbb_is_writable($phpbb_root_path . 'config.' . $phpEx))
 		{
 			// World-Writable? (000x)
diff --git a/phpBB/language/en/acp/common.php b/phpBB/language/en/acp/common.php
index 77a7618ce0..0117d85433 100644
--- a/phpBB/language/en/acp/common.php
+++ b/phpBB/language/en/acp/common.php
@@ -361,6 +361,7 @@ $lang = array_merge($lang, array(
 
 	'GZIP_COMPRESSION'	=> 'GZip compression',
 
+	'NO_SEARCH_INDEX'	=> 'The selected search backend does not have a search index.<br >Please create the index for “%1$s” in the %2$ssearch index%3$s section.',
 	'NOT_AVAILABLE'		=> 'Not available',
 	'NUMBER_FILES'		=> 'Number of attachments',
 	'NUMBER_POSTS'		=> 'Number of posts',