diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index 6ca3b16..f2d223d 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -173,6 +173,10 @@
 {
     data.setDataPosition(0);
 
+    if (reply != nullptr && (flags & FLAG_CLEAR_BUF)) {
+        reply->markSensitive();
+    }
+
     status_t err = NO_ERROR;
     switch (code) {
         case PING_TRANSACTION: