diff --git a/packages/core/src/components/radio-group/radio-group.tsx b/packages/core/src/components/radio-group/radio-group.tsx
index 6bf02a7854..af255c478d 100644
--- a/packages/core/src/components/radio-group/radio-group.tsx
+++ b/packages/core/src/components/radio-group/radio-group.tsx
@@ -34,6 +34,13 @@ export class RadioGroup implements ComponentDidLoad, RadioGroupInput {
    */
   @Prop({ mutable: true }) value: string;
 
+  @Watch('disabled')
+  disabledChanged() {
+    this.radios.forEach(radio => {
+      radio.disabled = this.disabled;
+    });
+  }
+
   @Watch('value')
   valueChanged() {
     // this radio group's value just changed