diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eac56476..bbbb3ba5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - tkp/sym
     tags:
       - v*
     paths-ignore:
diff --git a/cpp/csp/engine/Engine.h b/cpp/csp/engine/Engine.h
index 23afb256..57d1d3c4 100644
--- a/cpp/csp/engine/Engine.h
+++ b/cpp/csp/engine/Engine.h
@@ -6,6 +6,8 @@
 #include <csp/core/Time.h>
 #include <csp/engine/CycleStepTable.h>
 #include <csp/engine/DialectGenericType.h>
+#include <csp/engine/Node.h>
+#include <csp/engine/OutputAdapter.h>
 #include <memory>
 #include <unordered_map>
 #include <vector>