diff --git a/.docker/app/backup.sh b/.docker/app/backup.sh
index 784982c70..4ecc860b9 100644
--- a/.docker/app/backup.sh
+++ b/.docker/app/backup.sh
@@ -18,7 +18,7 @@ if pg_isready -h $TTRSS_DB_HOST -U $TTRSS_DB_USER -p $TTRSS_DB_PORT; then
 	echo backing up tt-rss local directories to $DST_DIR/$DST_FILE...
 
 	tar -cz -f $DST_DIR/$DST_FILE $APP_ROOT/*.local \
-		$APP_ROOT/feed-icons/ \
+		$APP_ROOT/cache/feed-icons/ \
 		$APP_ROOT/config.php
 
 	echo cleaning up...
diff --git a/classes/API.php b/classes/API.php
index 241663b3d..72c65ea54 100644
--- a/classes/API.php
+++ b/classes/API.php
@@ -366,22 +366,19 @@ class API extends Handler {
 	}
 
 	/**
+	 * @see RPC::_make_init_params()
+	 * @see RPC::_make_runtime_info()
 	 * @return array<string, array<string, string>|bool|int|string>
 	 */
 	private function _get_config(): array {
-		$config = [
-			"icons_dir" => Config::get(Config::ICONS_DIR),
-			"icons_url" => Config::get(Config::ICONS_URL)
+		return [
+			'custom_sort_types' => $this->_get_custom_sort_types(),
+			'daemon_is_running' => file_is_locked('update_daemon.lock'),
+			'icons_url' => Config::get_self_url() . '/public.php',
+			'num_feeds' => ORM::for_table('ttrss_feeds')
+				->where('owner_uid', $_SESSION['uid'])
+				->count(),
 		];
-
-		$config["daemon_is_running"] = file_is_locked("update_daemon.lock");
-		$config["custom_sort_types"] = $this->_get_custom_sort_types();
-
-		$config["num_feeds"] = ORM::for_table('ttrss_feeds')
-			->where('owner_uid', $_SESSION['uid'])
-			->count();
-
-		return $config;
 	}
 
 	function getConfig(): bool {
diff --git a/classes/Config.php b/classes/Config.php
index 356f81391..a7c0a04b2 100644
--- a/classes/Config.php
+++ b/classes/Config.php
@@ -73,9 +73,6 @@ class Config {
 	/** directory for feed favicons (directory must be writable) */
 	const ICONS_DIR = "ICONS_DIR";
 
-	/** URL for feed favicons */
-	const ICONS_URL = "ICONS_URL";
-
 	/** auto create users authenticated via external modules */
 	const AUTH_AUTO_CREATE = "AUTH_AUTO_CREATE";
 
@@ -208,7 +205,6 @@ class Config {
 		Config::LOCK_DIRECTORY => [ "lock",								Config::T_STRING ],
 		Config::CACHE_DIR => [ "cache",									Config::T_STRING ],
 		Config::ICONS_DIR => [ "feed-icons",							Config::T_STRING ],
-		Config::ICONS_URL => [ "feed-icons",							Config::T_STRING ],
 		Config::AUTH_AUTO_CREATE => [ "true",							Config::T_BOOL ],
 		Config::AUTH_AUTO_LOGIN => [ "true",							Config::T_BOOL ],
 		Config::FORCE_ARTICLE_PURGE => [ 0,								Config::T_INT ],
diff --git a/classes/RSSUtils.php b/classes/RSSUtils.php
index 1c931e7e7..3ede6bf3e 100644
--- a/classes/RSSUtils.php
+++ b/classes/RSSUtils.php
@@ -1743,7 +1743,10 @@ class RSSUtils {
 		$tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING);
 	}
 
-	/** migrates favicons from legacy storage in feed-icons/ to cache/feed-icons/using new naming (sans .ico suffix) */
+	/**
+	 * migrates favicons from legacy storage in feed-icons/ to cache/feed-icons/using new naming (sans .ico suffix)
+	 * @todo Remove this and Config::ICONS_DIR at some point
+	 */
 	static function migrate_feed_icons() : void {
 		$old_dir = Config::get(Config::ICONS_DIR);