diff --git a/config/sql/se/CollectionEbooks.sql b/config/sql/se/CollectionEbooks.sql
index 03efac97..3fc32d05 100644
--- a/config/sql/se/CollectionEbooks.sql
+++ b/config/sql/se/CollectionEbooks.sql
@@ -3,5 +3,6 @@ CREATE TABLE IF NOT EXISTS `CollectionEbooks` (
   `CollectionId` int(10) unsigned NOT NULL,
   `SequenceNumber` int(10) unsigned NULL,
   `SortOrder` tinyint(3) unsigned NOT NULL,
-  UNIQUE KEY `idxUnique` (`EbookId`,`CollectionId`)
+  UNIQUE KEY `idxUnique` (`EbookId`,`CollectionId`),
+  KEY `index1` (`CollectionId`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/config/sql/se/EbookLocSubjects.sql b/config/sql/se/EbookLocSubjects.sql
index f6119cfa..df6cb82f 100644
--- a/config/sql/se/EbookLocSubjects.sql
+++ b/config/sql/se/EbookLocSubjects.sql
@@ -2,5 +2,6 @@ CREATE TABLE IF NOT EXISTS `EbookLocSubjects` (
   `EbookId` int(10) unsigned NOT NULL,
   `LocSubjectId` int(10) unsigned NOT NULL,
   `SortOrder` tinyint(3) unsigned NOT NULL,
-  UNIQUE KEY `idxUnique` (`EbookId`,`LocSubjectId`)
+  UNIQUE KEY `idxUnique` (`EbookId`,`LocSubjectId`),
+  KEY `index1` (`LocSubjectId`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/config/sql/se/EbookTags.sql b/config/sql/se/EbookTags.sql
index 3b273b2f..b58bf411 100644
--- a/config/sql/se/EbookTags.sql
+++ b/config/sql/se/EbookTags.sql
@@ -2,5 +2,6 @@ CREATE TABLE IF NOT EXISTS `EbookTags` (
   `EbookId` int(10) unsigned NOT NULL,
   `TagId` int(10) unsigned NOT NULL,
   `SortOrder` tinyint(3) unsigned NOT NULL,
-  UNIQUE KEY `idxUnique` (`EbookId`,`TagId`)
+  UNIQUE KEY `idxUnique` (`EbookId`,`TagId`),
+  KEY `index1` (`TagId`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;