diff --git a/libs/vr/libpdx/client.cpp b/libs/vr/libpdx/client.cpp
index a01c4d6..3c66a40 100644
--- a/libs/vr/libpdx/client.cpp
+++ b/libs/vr/libpdx/client.cpp
@@ -119,6 +119,10 @@
   return channel_->GetChannelHandle();
 }
 
+const LocalChannelHandle& Client::GetChannelHandle() const {
+  return channel_->GetChannelHandle();
+}
+
 ///////////////////////////// Transaction implementation //////////////////////
 
 Transaction::Transaction(Client& client) : client_{client} {}
diff --git a/libs/vr/libpdx/private/pdx/client.h b/libs/vr/libpdx/private/pdx/client.h
index 656de7e..c35dabd 100644
--- a/libs/vr/libpdx/private/pdx/client.h
+++ b/libs/vr/libpdx/private/pdx/client.h
@@ -49,6 +49,7 @@
 
   // Returns a reference to IPC channel handle.
   LocalChannelHandle& GetChannelHandle();
+  const LocalChannelHandle& GetChannelHandle() const;
 
  protected:
   friend Transaction;
diff --git a/libs/vr/libpdx/private/pdx/client_channel.h b/libs/vr/libpdx/private/pdx/client_channel.h
index 8f5fdfe..f33a60e 100644
--- a/libs/vr/libpdx/private/pdx/client_channel.h
+++ b/libs/vr/libpdx/private/pdx/client_channel.h
@@ -33,6 +33,7 @@
   virtual std::vector<EventSource> GetEventSources() const = 0;
 
   virtual LocalChannelHandle& GetChannelHandle() = 0;
+  virtual const LocalChannelHandle& GetChannelHandle() const = 0;
   virtual void* AllocateTransactionState() = 0;
   virtual void FreeTransactionState(void* state) = 0;
 
diff --git a/libs/vr/libpdx/private/pdx/mock_client_channel.h b/libs/vr/libpdx/private/pdx/mock_client_channel.h
index ecc20b3..b1a1299 100644
--- a/libs/vr/libpdx/private/pdx/mock_client_channel.h
+++ b/libs/vr/libpdx/private/pdx/mock_client_channel.h
@@ -14,6 +14,7 @@
   MOCK_CONST_METHOD0(GetEventSources, std::vector<EventSource>());
   MOCK_METHOD1(GetEventMask, Status<int>(int));
   MOCK_METHOD0(GetChannelHandle, LocalChannelHandle&());
+  MOCK_CONST_METHOD0(GetChannelHandle, const LocalChannelHandle&());
   MOCK_METHOD0(AllocateTransactionState, void*());
   MOCK_METHOD1(FreeTransactionState, void(void* state));
   MOCK_METHOD3(SendImpulse,