diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 9d1e283..8afe14f 100644
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -1495,6 +1495,7 @@
     }
 
     public boolean setRadioPower(boolean turnOn) {
+        enforceModifyPermission();
         final Phone defaultPhone = PhoneFactory.getDefaultPhone();
         if (defaultPhone != null) {
             defaultPhone.setRadioPower(turnOn);