diff --git a/api/routes/game/details.php b/api/routes/game/details.php
index 809da2d..0dd5d69 100644
--- a/api/routes/game/details.php
+++ b/api/routes/game/details.php
@@ -31,6 +31,10 @@ return [
 	"post" => function($data, $headers, $db) {
 		$imagesHostName = 'https://geohry.skolazdola.cz/';
 
+		if(!isset($data['gameurl']) || empty($data['gameurl'])) return [
+			"error" => "Property 'gameurl' is not set."
+		];
+
 		$gameUrl = $data['gameurl'];
 
 		$gameDetails = $db->select('games4', '*', [