diff --git a/database/2020_05_27_134934_add_missing_indexes.php b/database/2020_05_27_134934_add_missing_indexes.php
new file mode 100644
index 00000000..0f1a04b4
--- /dev/null
+++ b/database/2020_05_27_134934_add_missing_indexes.php
@@ -0,0 +1,66 @@
+<?php
+namespace Misuzu\DatabaseMigrations\AddMissingIndexes;
+
+use PDO;
+
+function migrate_up(PDO $conn): void {
+    $conn->exec("
+        ALTER TABLE `msz_forum_categories`
+            ADD INDEX `forum_link_clicks_index` (`forum_link_clicks`),
+            ADD INDEX `forum_hidden_index` (`forum_hidden`);
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_login_attempts`
+            ADD INDEX `login_attempts_success_index` (`attempt_success`),
+            ADD INDEX `login_attempts_ip_index` (`attempt_ip`);
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_news_categories`
+            ADD INDEX `news_categories_is_hidden_index` (`category_is_hidden`);
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_roles`
+            ADD INDEX `roles_hierarchy_index` (`role_hierarchy`),
+            ADD INDEX `roles_hidden_index` (`role_hidden`);
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_user_relations`
+            ADD INDEX `user_relations_type_index` (`relation_type`),
+            ADD INDEX `user_relations_created_index` (`relation_created`);
+    ");
+}
+
+function migrate_down(PDO $conn): void {
+    $conn->exec("
+        ALTER TABLE `msz_forum_categories`
+            DROP INDEX `forum_link_clicks_index`,
+            DROP INDEX `forum_hidden_index`;
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_login_attempts`
+            DROP INDEX `login_attempts_success_index`,
+            DROP INDEX `login_attempts_ip_index`;
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_news_categories`
+            DROP INDEX `news_categories_is_hidden_index`;
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_roles`
+            DROP INDEX `roles_hierarchy_index`,
+            DROP INDEX `roles_hidden_index`;
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_user_relations`
+            DROP INDEX `user_relations_type_index`,
+            DROP INDEX `user_relations_created_index`;
+    ");
+}