diff --git a/internal/repository/partnumber_book.go b/internal/repository/partnumber_book.go
index 23b6f1d..a76509b 100644
--- a/internal/repository/partnumber_book.go
+++ b/internal/repository/partnumber_book.go
@@ -157,7 +157,7 @@ func (r *PartnumberBookRepository) listCatalogItems(partnumbers localdb.LocalStr
 	query := r.db.Model(&localdb.LocalPartnumberBookItem{}).Where("partnumber IN ?", []string(partnumbers))
 	if search != "" {
 		trimmedSearch := "%" + search + "%"
-		query = query.Where("partnumber LIKE ? OR lots_json LIKE ? OR description LIKE ?", trimmedSearch, trimmedSearch, trimmedSearch)
+		query = query.Where("partnumber LIKE ? OR CAST(lots_json AS TEXT) LIKE ? OR description LIKE ?", trimmedSearch, trimmedSearch, trimmedSearch)
 	}
 
 	var total int64
diff --git a/web/templates/partnumber_books.html b/web/templates/partnumber_books.html
index 0ebc2c8..08d2179 100644
--- a/web/templates/partnumber_books.html
+++ b/web/templates/partnumber_books.html
@@ -66,7 +66,7 @@
     <div id="active-book-section" class="hidden bg-white rounded-lg shadow overflow-hidden">
         <div class="px-4 py-3 border-b flex items-center justify-between gap-3">
             <span class="font-semibold text-gray-800 whitespace-nowrap">Сопоставления активного листа</span>
-            <input type="text" id="pn-search" placeholder="Поиск по PN или LOT..."
+            <input type="text" id="pn-search" placeholder="Поиск по PN, LOT или описанию..."
                    class="flex-1 max-w-xs px-3 py-1.5 border rounded text-sm focus:ring-2 focus:ring-blue-400 focus:outline-none"
                    oninput="onItemsSearchInput(this.value)">
             <span id="pn-count" class="text-xs text-gray-400 whitespace-nowrap"></span>