diff --git a/Samples/Client/Client_Subscribe_Samples.cs b/Samples/Client/Client_Subscribe_Samples.cs
index d4f9ff42..a1bcd680 100644
--- a/Samples/Client/Client_Subscribe_Samples.cs
+++ b/Samples/Client/Client_Subscribe_Samples.cs
@@ -6,6 +6,7 @@
 // ReSharper disable UnusedMember.Global
 // ReSharper disable InconsistentNaming
 
+using MQTTnet;
 using MQTTnet.Client;
 using MQTTnet.Packets;
 using MQTTnet.Protocol;
@@ -176,4 +177,4 @@ public static class Client_Subscribe_Samples
             response.DumpToConsole();
         }
     }
-}
\ No newline at end of file
+}