diff --git a/transport/Static.cpp b/transport/Static.cpp
index 18cb475..784b835 100644
--- a/transport/Static.cpp
+++ b/transport/Static.cpp
@@ -32,6 +32,9 @@
 ConcurrentMap<std::string, std::function<sp<IBinder>(void *)>>
         gBnConstructorMap{};
 
+ConcurrentMap<const ::android::hidl::base::V1_0::IBase*, wp<::android::hardware::BHwBinder>>
+    gBnMap{};
+
 ConcurrentMap<wp<::android::hidl::base::V1_0::IBase>, SchedPrio> gServicePrioMap{};
 
 ConcurrentMap<std::string, std::function<sp<::android::hidl::base::V1_0::IBase>(void *)>>