2 files changed, 2 insertions, 4 deletions
diff --git a/src/StardewModdingAPI/Framework/DeprecationManager.cs b/src/StardewModdingAPI/Framework/DeprecationManager.cs
index e44cd369..6b95960b 100644
--- a/src/StardewModdingAPI/Framework/DeprecationManager.cs
+++ b/src/StardewModdingAPI/Framework/DeprecationManager.cs
@@ -78,7 +78,7 @@ namespace StardewModdingAPI.Framework
                     break;
 
                 default:
-                    throw new NotImplementedException($"Unknown deprecation level '{severity}'");
+                    throw new NotSupportedException($"Unknown deprecation level '{severity}'");
             }
         }
 
diff --git a/src/StardewModdingAPI/Framework/Monitor.cs b/src/StardewModdingAPI/Framework/Monitor.cs
index 51feff78..dac81f14 100644
--- a/src/StardewModdingAPI/Framework/Monitor.cs
+++ b/src/StardewModdingAPI/Framework/Monitor.cs
@@ -64,12 +64,10 @@ namespace StardewModdingAPI.Framework
             // validate
             if (string.IsNullOrWhiteSpace(source))
                 throw new ArgumentException("The log source cannot be empty.");
-            if (logFile == null)
-                throw new ArgumentNullException(nameof(logFile), "The log file manager cannot be null.");
 
             // initialise
             this.Source = source;
-            this.LogFile = logFile;
+            this.LogFile = logFile ?? throw new ArgumentNullException(nameof(logFile), "The log file manager cannot be null.");
             this.ConsoleManager = consoleManager;
             this.RequestExit = requestExitDelegate;
         }