diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index 01b25d3..39befbe 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -582,6 +582,10 @@
 
 BBinder::~BBinder()
 {
+    if (!wasParceled() && getExtension()) {
+        ALOGW("Binder %p destroyed with extension attached before being parceled.", this);
+    }
+
     Extras* e = mExtras.load(std::memory_order_relaxed);
     if (e) delete e;
 }