1 files changed, 5 insertions, 0 deletions
diff --git a/include/grpc++/client_context.h b/include/grpc++/client_context.h
index d7fafac9b3..915a80ddb0 100644
--- a/include/grpc++/client_context.h
+++ b/include/grpc++/client_context.h
@@ -121,6 +121,10 @@ class PropagationOptions {
   gpr_uint32 propagate_;
 };
 
+namespace testing {
+class InteropClientContextInspector;
+}  // namespace testing
+
 class ClientContext {
  public:
   ClientContext();
@@ -190,6 +194,7 @@ class ClientContext {
   ClientContext(const ClientContext&);
   ClientContext& operator=(const ClientContext&);
 
+  friend class ::grpc::testing::InteropClientContextInspector;
   friend class CallOpClientRecvStatus;
   friend class CallOpRecvInitialMetadata;
   friend class Channel;