1 files changed, 7 insertions, 1 deletions
diff --git a/include/grpc++/impl/codegen/client_context.h b/include/grpc++/impl/codegen/client_context.h
index aed12767a7..e23fd4eda3 100644
--- a/include/grpc++/impl/codegen/client_context.h
+++ b/include/grpc++/impl/codegen/client_context.h
@@ -55,6 +55,7 @@
 
 #include <grpc++/impl/codegen/config.h>
 #include <grpc++/impl/codegen/core_codegen_interface.h>
+#include <grpc++/impl/codegen/create_auth_context.h>
 #include <grpc++/impl/codegen/security/auth_context.h>
 #include <grpc++/impl/codegen/status.h>
 #include <grpc++/impl/codegen/string_ref.h>
@@ -244,7 +245,12 @@ class ClientContext {
   /// Return the authentication context for this client call.
   ///
   /// \see grpc::AuthContext.
-  std::shared_ptr<const AuthContext> auth_context() const;
+  std::shared_ptr<const AuthContext> auth_context() const {
+    if (auth_context_.get() == nullptr) {
+      auth_context_ = CreateAuthContext(call_);
+    }
+    return auth_context_;
+  }
 
   /// Set credentials for the client call.
   ///