diff --git a/lib/Database.php b/lib/Database.php
index ca98b3d..47c74de 100644
--- a/lib/Database.php
+++ b/lib/Database.php
@@ -497,7 +497,7 @@ class Database {
         $q = new Query(
             "SELECT 
                 arsse_subscriptions.id as id,
-                url,favicon,source,folder,pinned,err_count,err_msg,order_type,added,
+                feed,url,favicon,source,folder,pinned,err_count,err_msg,order_type,added,
                 topmost.top as top_folder,
                 coalesce(arsse_subscriptions.title, arsse_feeds.title) as title,
                 (SELECT count(*) from arsse_articles where feed is arsse_subscriptions.feed) - (SELECT count(*) from arsse_marks where subscription is arsse_subscriptions.id and read is 1) as unread
diff --git a/lib/REST/TinyTinyRSS/API.php b/lib/REST/TinyTinyRSS/API.php
index 6e1a71d..c50703e 100644
--- a/lib/REST/TinyTinyRSS/API.php
+++ b/lib/REST/TinyTinyRSS/API.php
@@ -342,7 +342,7 @@ class API extends \JKingWeb\Arsse\REST\AbstractHandler {
 
     public function opRenameFeed(array $data) {
         if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id']) || !isset($data['caption'])) {
-            // if the feed is invalid, throw an error
+            // if the feed is invalid or there is no caption, throw an error
             throw new Exception("INCORRECT_USAGE");
         }
         $info = ValueInfo::str($data['caption']);
@@ -379,4 +379,17 @@ class API extends \JKingWeb\Arsse\REST\AbstractHandler {
             'num_feeds' => Arsse::$db->subscriptionCount(Arsse::$user->id),
         ];
     }
+
+    public function opUpdateFeed(array $data): array {
+        if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id'])) {
+            // if the feed is invalid, throw an error
+            throw new Exception("INCORRECT_USAGE");
+        }
+        try {
+            Arsse::$db->feedUpdate(Arsse::$db->subscriptionPropertiesGet(Arsse::$user->id, (int) $data['feed_id'])['feed']);
+        } catch(ExceptionInput $e) {
+            throw new Exception("FEED_NOT_FOUND");
+        }
+        return ['status' => "OK"];
+    }
 }
diff --git a/tests/REST/TinyTinyRSS/TestTinyTinyAPI.php b/tests/REST/TinyTinyRSS/TestTinyTinyAPI.php
index 467e359..b96bc01 100644
--- a/tests/REST/TinyTinyRSS/TestTinyTinyAPI.php
+++ b/tests/REST/TinyTinyRSS/TestTinyTinyAPI.php
@@ -609,4 +609,24 @@ class TestTinyTinyAPI extends Test\AbstractTest {
         $this->assertEquals($this->respGood($exp[0]), $this->h->dispatch(new Request("POST", "", json_encode($in))));
         $this->assertEquals($this->respGood($exp[1]), $this->h->dispatch(new Request("POST", "", json_encode($in))));
     }
+
+    public function testUpdateAFeed() {
+        $in = [
+            ['op' => "updateFeed", 'sid' => "PriestsOfSyrinx", 'feed_id' => 1],
+            ['op' => "updateFeed", 'sid' => "PriestsOfSyrinx", 'feed_id' => 2],
+            ['op' => "updateFeed", 'sid' => "PriestsOfSyrinx", 'feed_id' => -1],
+            ['op' => "updateFeed", 'sid' => "PriestsOfSyrinx"],
+        ];
+        Phake::when(Arsse::$db)->feedUpdate(11)->thenReturn(true);
+        Phake::when(Arsse::$db)->subscriptionPropertiesGet(Arsse::$user->id, 1)->thenReturn(['id' => 1, 'feed' => 11]);
+        Phake::when(Arsse::$db)->subscriptionPropertiesGet(Arsse::$user->id, 2)->thenThrow(new ExceptionInput("subjectMissing"));
+        $exp = $this->respGood(['status' => "OK"]);
+        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "", json_encode($in[0]))));
+        Phake::verify(Arsse::$db)->feedUpdate(11);
+        $exp = $this->respErr("FEED_NOT_FOUND");
+        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "", json_encode($in[1]))));
+        $exp = $this->respErr("INCORRECT_USAGE");
+        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "", json_encode($in[2]))));
+        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "", json_encode($in[3]))));
+    }
 }