diff --git a/www/manager6/qemu/HDEdit.js b/www/manager6/qemu/HDEdit.js
index 921bfe72..b78647ec 100644
--- a/www/manager6/qemu/HDEdit.js
+++ b/www/manager6/qemu/HDEdit.js
@@ -255,10 +255,12 @@ Ext.define('PVE.qemu.HDInputPanel', {
 		name: 'iothread',
 		fieldLabel: 'IO thread',
 		clearOnDisable: true,
-		bind: {
+		bind: me.insideWizard || me.isCreate ? {
 		    disabled: '{!isVirtIO && !isSCSI}',
 		    // Checkbox.setValue handles Arrays in a different way, therefore cast to bool
 		    value: '{!!isVirtIO || (isSCSI && isSCSISingle)}',
+		} : {
+		    disabled: '{!isVirtIO && !isSCSI}',
 		},
 	    },
 	);