diff --git a/src/db/serializable.cr b/src/db/serializable.cr
index 4559af4..38c3b88 100644
--- a/src/db/serializable.cr
+++ b/src/db/serializable.cr
@@ -95,7 +95,7 @@ module DB
           super
         end
 
-        def self.from_rs(rs : ::DB::Result_set)
+        def self.from_rs(rs : ::DB::ResultSet)
           super
         end
       end