diff --git a/BizHawk.Client.EmuHawk/config/AmstradCPC/AmstradCPCNonSyncSettings.cs b/BizHawk.Client.EmuHawk/config/AmstradCPC/AmstradCPCNonSyncSettings.cs
index 39b468a567..4ca4b24f08 100644
--- a/BizHawk.Client.EmuHawk/config/AmstradCPC/AmstradCPCNonSyncSettings.cs
+++ b/BizHawk.Client.EmuHawk/config/AmstradCPC/AmstradCPCNonSyncSettings.cs
@@ -39,7 +39,7 @@ namespace BizHawk.Client.EmuHawk
 			{
 				_settings.OSDMessageVerbosity = (AmstradCPC.OSDVerbosity)Enum.Parse(typeof(AmstradCPC.OSDVerbosity), osdMessageVerbositycomboBox1.SelectedItem.ToString());
 
-				GlobalWin.MainForm.PutCoreSettings(_settings);
+				_mainForm.PutCoreSettings(_settings);
 
 				DialogResult = DialogResult.OK;
 				Close();