diff --git a/quic/core/quic_session.h b/quic/core/quic_session.h
index 16c7efc..1f03a40 100644
--- a/quic/core/quic_session.h
+++ b/quic/core/quic_session.h
@@ -347,6 +347,9 @@
 
   // Returns the Google QUIC error code
   QuicErrorCode error() const { return on_closed_frame_.extracted_error_code; }
+  const std::string& error_details() const {
+    return on_closed_frame_.error_details;
+  }
   uint64_t transport_close_frame_type() const {
     return on_closed_frame_.transport_close_frame_type;
   }