From 80ed0f034bd7acb208ccd35998e76e0b181ad26a Mon Sep 17 00:00:00 2001
From: Jordan Brown <Cyberboss@users.noreply.github.com>
Date: Thu, 27 Sep 2018 18:28:27 -0400
Subject: [PATCH] Fix NullReferenceException

---
 src/Tgstation.Server.Host/Components/Byond/ByondManager.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Tgstation.Server.Host/Components/Byond/ByondManager.cs b/src/Tgstation.Server.Host/Components/Byond/ByondManager.cs
index 4257028c20..522f254c34 100644
--- a/src/Tgstation.Server.Host/Components/Byond/ByondManager.cs
+++ b/src/Tgstation.Server.Host/Components/Byond/ByondManager.cs
@@ -182,7 +182,7 @@ namespace Tgstation.Server.Host.Components.Byond
 			using (await SemaphoreSlimContext.Lock(semaphore, cancellationToken).ConfigureAwait(false))
 			{
 				await ioManager.WriteAllBytes(ActiveVersionFileName, Encoding.UTF8.GetBytes(versionKey), cancellationToken).ConfigureAwait(false);
-				await eventConsumer.HandleEvent(EventType.ByondActiveVersionChange, new List<string> { VersionKey(ActiveVersion), versionKey }, cancellationToken).ConfigureAwait(false);
+				await eventConsumer.HandleEvent(EventType.ByondActiveVersionChange, new List<string> { ActiveVersion != null ? VersionKey(ActiveVersion) : null, versionKey }, cancellationToken).ConfigureAwait(false);
 				ActiveVersion = version;
 			}
 		}