diff --git a/src/material/radio/radio.ts b/src/material/radio/radio.ts
index ed83b31f3f91..a620689f11a5 100644
--- a/src/material/radio/radio.ts
+++ b/src/material/radio/radio.ts
@@ -269,6 +269,7 @@ export class MatRadioGroup implements AfterContentInit, OnDestroy, ControlValueA
   _touch() {
     if (this.onTouched) {
       this.onTouched();
+      this._changeDetector.markForCheck();
     }
   }