diff --git a/NMoonAnime/Controller.cs b/NMoonAnime/Controller.cs
index a934991..df1afee 100644
--- a/NMoonAnime/Controller.cs
+++ b/NMoonAnime/Controller.cs
@@ -35,22 +35,23 @@ namespace NMoonAnime.Controllers
                 return Forbid();
 
             var invoke = new NMoonAnimeInvoke(init, hybridCache, OnLog, proxyManager);
+            string effectiveMalId = ResolveMalId(mal_id, kinopoisk_id);
 
             if (checksearch)
             {
                 if (AppInit.conf?.online?.checkOnlineSearch != true)
                     return OnError("nmoonanime", proxyManager);
 
-                var checkResults = await invoke.Search(imdb_id, mal_id, title, original_title, year);
+                var checkResults = await invoke.Search(imdb_id, effectiveMalId, title, year);
                 if (checkResults != null && checkResults.Count > 0)
                     return Content("data-json=", "text/plain; charset=utf-8");
 
                 return OnError("nmoonanime", proxyManager);
             }
 
-            OnLog($"NMoonAnime: назва={title}, оригінальна_назва={original_title}, imdb={imdb_id}, mal_id={mal_id}, серіал={serial}, сезон={s}, озвучка={t}");
+            OnLog($"NMoonAnime: назва={title}, imdb={imdb_id}, kinopoisk_id(як mal_id)={kinopoisk_id}, mal_id_ефективний={effectiveMalId}, рік={year}, серіал={serial}, сезон={s}, озвучка={t}");
 
-            var seasons = await invoke.Search(imdb_id, mal_id, title, original_title, year);
+            var seasons = await invoke.Search(imdb_id, effectiveMalId, title, year);
             if (seasons == null || seasons.Count == 0)
                 return OnError("nmoonanime", proxyManager);
 
@@ -68,7 +69,7 @@ namespace NMoonAnime.Controllers
 
             if (isSeries)
             {
-                return await RenderSerial(invoke, seasons, imdb_id, kinopoisk_id, title, original_title, year, mal_id, s, t, rjson);
+                return await RenderSerial(invoke, seasons, imdb_id, kinopoisk_id, title, original_title, year, effectiveMalId, s, t, rjson);
             }
 
             return await RenderMovie(invoke, seasons, title, original_title, firstSeasonData, rjson);
@@ -297,6 +298,14 @@ namespace NMoonAnime.Controllers
             return index;
         }
 
+        private static string ResolveMalId(string malId, long kinopoiskId)
+        {
+            if (!string.IsNullOrWhiteSpace(malId))
+                return malId.Trim();
+
+            return kinopoiskId > 0 ? kinopoiskId.ToString() : null;
+        }
+
         private string BuildStreamUrl(OnlinesSettings init, string streamLink)
         {
             string link = StripLampacArgs(streamLink?.Trim());
diff --git a/NMoonAnime/NMoonAnimeInvoke.cs b/NMoonAnime/NMoonAnimeInvoke.cs
index d2e087b..ce7ce3f 100644
--- a/NMoonAnime/NMoonAnimeInvoke.cs
+++ b/NMoonAnime/NMoonAnimeInvoke.cs
@@ -33,9 +33,9 @@ namespace NMoonAnime
             _proxyManager = proxyManager;
         }
 
-        public async Task<List<NMoonAnimeSeasonRef>> Search(string imdbId, string malId, string title, string originalTitle, int year)
+        public async Task<List<NMoonAnimeSeasonRef>> Search(string imdbId, string malId, string title, int year)
         {
-            string memKey = $"NMoonAnime:search:{imdbId}:{malId}:{title}:{originalTitle}:{year}";
+            string memKey = $"NMoonAnime:search:{imdbId}:{malId}:{title}:{year}";
             if (_hybridCache.TryGetValue(memKey, out List<NMoonAnimeSeasonRef> cached))
                 return cached;
 
@@ -49,7 +49,7 @@ namespace NMoonAnime
 
                 foreach (var endpoint in endpoints)
                 {
-                    string searchUrl = BuildSearchUrl(endpoint, imdbId, malId, title, originalTitle, year);
+                    string searchUrl = BuildSearchUrl(endpoint, imdbId, malId, title, year);
                     if (string.IsNullOrWhiteSpace(searchUrl))
                         continue;
 
@@ -198,21 +198,18 @@ namespace NMoonAnime
                 .ToList();
         }
 
-        private string BuildSearchUrl(string endpoint, string imdbId, string malId, string title, string originalTitle, int year)
+        private string BuildSearchUrl(string endpoint, string imdbId, string malId, string title, int year)
         {
             var query = HttpUtility.ParseQueryString(string.Empty);
 
-            if (!string.IsNullOrWhiteSpace(imdbId))
-                query["imdb_id"] = imdbId;
-
             if (!string.IsNullOrWhiteSpace(malId))
                 query["mal_id"] = malId;
-
-            if (!string.IsNullOrWhiteSpace(title))
+            else if (!string.IsNullOrWhiteSpace(imdbId))
+                query["imdb_id"] = imdbId;
+            else if (!string.IsNullOrWhiteSpace(title))
                 query["title"] = title;
-
-            if (!string.IsNullOrWhiteSpace(originalTitle))
-                query["original_title"] = originalTitle;
+            else
+                return null;
 
             if (year > 0)
                 query["year"] = year.ToString();