diff --git a/ArchiSteamFarm/Plugins/IBotCardsFarmerInfo.cs b/ArchiSteamFarm/Plugins/IBotCardsFarmerInfo.cs
index 318635af6..fd484a123 100644
--- a/ArchiSteamFarm/Plugins/IBotCardsFarmerInfo.cs
+++ b/ArchiSteamFarm/Plugins/IBotCardsFarmerInfo.cs
@@ -29,18 +29,18 @@ namespace ArchiSteamFarm.Plugins {
 		/// </summary>
 		/// <param name="bot">Bot object related to this callback.</param>
 		/// <param name="farmedSomething">Bool value indicating whether the module has finished successfully, so when there was at least one card to drop, and nothing has interrupted us in the meantime.</param>
-		void OnBotFarmingFinished(Bot bot, bool farmedSomething);
+		void OnBotFarmingFinished([NotNull] Bot bot, bool farmedSomething);
 
 		/// <summary>
 		///     ASF will call this method when cards farming module is started on given bot instance. The module is started only when there are valid cards to drop, so this method won't be called when there is nothing to idle.
 		/// </summary>
 		/// <param name="bot">Bot object related to this callback.</param>
-		void OnBotFarmingStarted(Bot bot);
+		void OnBotFarmingStarted([NotNull] Bot bot);
 
 		/// <summary>
 		///     ASF will call this method when cards farming module is stopped on given bot instance. The stop could be a result of a natural finish, or other situations (e.g. Steam networking issues, user commands).
 		/// </summary>
 		/// <param name="bot">Bot object related to this callback.</param>
-		void OnBotFarmingStopped(Bot bot);
+		void OnBotFarmingStopped([NotNull] Bot bot);
 	}
 }