diff --git a/quic/quartc/quartc_dispatcher.h b/quic/quartc/quartc_dispatcher.h
index b294330..7ac3dae 100644
--- a/quic/quartc/quartc_dispatcher.h
+++ b/quic/quartc/quartc_dispatcher.h
@@ -40,10 +40,11 @@
       Delegate* delegate);
   ~QuartcDispatcher() override;
 
-  QuartcSession* CreateQuicSession(QuicConnectionId server_connection_id,
-                                   const QuicSocketAddress& client_address,
-                                   quiche::QuicheStringPiece alpn,
-                                   const ParsedQuicVersion& version) override;
+  std::unique_ptr<QuicSession> CreateQuicSession(
+      QuicConnectionId server_connection_id,
+      const QuicSocketAddress& client_address,
+      quiche::QuicheStringPiece alpn,
+      const ParsedQuicVersion& version) override;
 
   // TODO(b/124399417): Override GenerateNewServerConnectionId and request a
   // zero-length connection id when the QUIC server perspective supports it.