diff --git a/src/BizHawk.Emulation.Cores/Computers/AmstradCPC/AmstradCPC.IEmulator.cs b/src/BizHawk.Emulation.Cores/Computers/AmstradCPC/AmstradCPC.IEmulator.cs
index 3a97458b45..71422a0b69 100644
--- a/src/BizHawk.Emulation.Cores/Computers/AmstradCPC/AmstradCPC.IEmulator.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/AmstradCPC/AmstradCPC.IEmulator.cs
@@ -61,10 +61,7 @@ namespace BizHawk.Emulation.Cores.Computers.AmstradCPC
 
 		public void Dispose()
 		{
-			if (_machine != null)
-			{
-				_machine = null;
-			}
+			_machine = null;
 		}
 	}
 }
diff --git a/src/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/ZXSpectrum.IEmulator.cs b/src/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/ZXSpectrum.IEmulator.cs
index dd5681d042..8d8ca3e203 100644
--- a/src/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/ZXSpectrum.IEmulator.cs
+++ b/src/BizHawk.Emulation.Cores/Computers/SinclairSpectrum/ZXSpectrum.IEmulator.cs
@@ -61,10 +61,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
 
 		public void Dispose()
 		{
-			if (_machine != null)
-			{
-				_machine = null;
-			}
+			_machine = null;
 		}
 	}
 }