diff --git a/schema/ttrss_schema_mysql.sql b/schema/ttrss_schema_mysql.sql
index 37a714f7f..38a531095 100644
--- a/schema/ttrss_schema_mysql.sql
+++ b/schema/ttrss_schema_mysql.sql
@@ -266,6 +266,8 @@ create table ttrss_enclosures (id integer primary key auto_increment,
 	index (post_id),
 	foreign key (post_id) references ttrss_entries(id) ON DELETE cascade) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
 
+create index ttrss_enclosures_post_id_idx on ttrss_enclosures(post_id);
+
 create table ttrss_settings_profiles(id integer primary key auto_increment,
 	title varchar(250) not null,
 	owner_uid integer not null,
diff --git a/schema/ttrss_schema_pgsql.sql b/schema/ttrss_schema_pgsql.sql
index 6e56134fa..d018d7f0b 100644
--- a/schema/ttrss_schema_pgsql.sql
+++ b/schema/ttrss_schema_pgsql.sql
@@ -235,6 +235,8 @@ create table ttrss_enclosures (id serial not null primary key,
 	duration text not null,
 	post_id integer references ttrss_entries(id) ON DELETE cascade NOT NULL);
 
+create index ttrss_enclosures_post_id_idx on ttrss_enclosures(post_id);
+
 create table ttrss_settings_profiles(id serial not null primary key,
 	title varchar(250) not null,
 	owner_uid integer not null references ttrss_users(id) on delete cascade);