diff --git a/packages/contracts-rfq/package.json b/packages/contracts-rfq/package.json
index 29c224390d..93c1d15d69 100644
--- a/packages/contracts-rfq/package.json
+++ b/packages/contracts-rfq/package.json
@@ -26,7 +26,7 @@
     "lint": "forge fmt && npm run solhint",
     "lint:check": "forge fmt --check && npm run solhint:check",
     "ci:lint": "npm run lint:check",
-    "build:go": "./flatten.sh contracts/*.sol test/*.sol",
+    "build:go": "./flatten.sh contracts/*.sol test/harnesses/*.sol test/mocks/*.sol",
     "solhint": "solhint '{contracts,script,test}/**/*.sol' --fix --noPrompt --max-warnings 3",
     "solhint:check": "solhint '{contracts,script,test}/**/*.sol' --max-warnings 3"
   }