diff --git a/src/Kaleidoscope-Model01-TestMode.h b/src/Kaleidoscope-Model01-TestMode.h
index 598ad396..1884756d 100644
--- a/src/Kaleidoscope-Model01-TestMode.h
+++ b/src/Kaleidoscope-Model01-TestMode.h
@@ -15,6 +15,10 @@ class TestMode_ : public kaleidoscope::Plugin {
   kaleidoscope::EventHandlerResult beforeReportingState();
 
 #if KALEIDOSCOPE_ENABLE_V1_PLUGIN_API
+  kaleidoscope::EventHandlerResult onSetup() {
+    return kaleidoscope::EventHandlerResult::OK;
+  }
+
  protected:
   void begin();
   static void legacyLoopHook(bool is_post_clear);