diff --git a/src/BizHawk.Emulation.Common/Base Implementations/CallbackBasedTraceBuffer.cs b/src/BizHawk.Emulation.Common/Base Implementations/CallbackBasedTraceBuffer.cs
index 2f005cfd60..0628d67ce4 100644
--- a/src/BizHawk.Emulation.Common/Base Implementations/CallbackBasedTraceBuffer.cs	
+++ b/src/BizHawk.Emulation.Common/Base Implementations/CallbackBasedTraceBuffer.cs	
@@ -85,5 +85,6 @@ namespace BizHawk.Emulation.Common
 
 			public string Scope { get; }
 		}
+#nullable restore
 	}
 }