diff --git a/packages/@headlessui-react/src/components/radio-group/radio-group.tsx b/packages/@headlessui-react/src/components/radio-group/radio-group.tsx
index c0313f2..d26a3f0 100644
--- a/packages/@headlessui-react/src/components/radio-group/radio-group.tsx
+++ b/packages/@headlessui-react/src/components/radio-group/radio-group.tsx
@@ -119,7 +119,7 @@ let RadioGroupRoot = forwardRefWithAs(function RadioGroup<
   props: Props<
     TTag,
     RadioGroupRenderPropArg<TType>,
-    RadioGroupPropsWeControl | 'value' | 'onChange' | 'disabled' | 'name' | 'by'
+    RadioGroupPropsWeControl | 'value' | 'defaultValue' | 'onChange' | 'disabled' | 'name' | 'by'
   > & {
     value?: TType
     defaultValue?: TType