diff --git a/updater/simulator_runtime.cpp b/updater/simulator_runtime.cpp
index 3ed7bf3..57dfb32 100644
--- a/updater/simulator_runtime.cpp
+++ b/updater/simulator_runtime.cpp
@@ -130,3 +130,8 @@
   }
   return true;
 }
+
+std::string SimulatorRuntime::AddSlotSuffix(const std::string_view arg) const {
+  LOG(INFO) << "Skip adding slot suffix to " << arg;
+  return std::string(arg);
+}