diff --git a/core/java/android/os/Binder.java b/core/java/android/os/Binder.java
index c25ebb7f815c1..24569fa6e9b15 100644
--- a/core/java/android/os/Binder.java
+++ b/core/java/android/os/Binder.java
@@ -337,13 +337,16 @@ public class Binder implements IBinder {
         try {
             res = onTransact(code, data, reply, flags);
         } catch (RemoteException e) {
+            reply.setDataPosition(0);
             reply.writeException(e);
             res = true;
         } catch (RuntimeException e) {
+            reply.setDataPosition(0);
             reply.writeException(e);
             res = true;
         } catch (OutOfMemoryError e) {
             RuntimeException re = new RuntimeException("Out of memory", e);
+            reply.setDataPosition(0);
             reply.writeException(re);
             res = true;
         }