diff --git a/tsconfig.build.json b/tsconfig.build.json
index c32520a618..05ece689aa 100644
--- a/tsconfig.build.json
+++ b/tsconfig.build.json
@@ -94,6 +94,7 @@
     { "path": "./packages/workflow/workflow" },
     { "path": "./packages/workflow/workflow-workerthread" },
     { "path": "./packages/workflow/tool-workflow" },
+    { "path": "./packages/workflow/tool-ralph" },
     { "path": "./packages/todo/tool-todo" },
     { "path": "./packages/guard/repeat-tool-guard" },
     { "path": "./packages/cordis/tool-cordis" },