diff --git a/core/java/android/companion/ICompanionDeviceDiscoveryService.aidl b/core/java/android/companion/ICompanionDeviceDiscoveryService.aidl
index 5e3d46caae91f..a630873c7f677 100644
--- a/core/java/android/companion/ICompanionDeviceDiscoveryService.aidl
+++ b/core/java/android/companion/ICompanionDeviceDiscoveryService.aidl
@@ -23,7 +23,7 @@ import com.android.internal.infra.AndroidFuture;
 
 
 /** @hide */
-interface ICompanionDeviceDiscoveryService {
+oneway interface ICompanionDeviceDiscoveryService {
     void startDiscovery(
         in AssociationRequest request,
         in String callingPackage,