diff --git a/Content.Server/Administration/ReadyAll.cs b/Content.Server/Administration/ReadyAll.cs
index a03a5b447e..05d0b48fc8 100644
--- a/Content.Server/Administration/ReadyAll.cs
+++ b/Content.Server/Administration/ReadyAll.cs
@@ -1,4 +1,5 @@
-using Content.Server.GameTicking;
+#nullable enable
+using Content.Server.GameTicking;
 using Content.Server.Interfaces.GameTicking;
 using Robust.Server.Interfaces.Console;
 using Robust.Server.Interfaces.Player;