diff --git a/cmake/deps/rpcspec.cmake b/cmake/deps/rpcspec.cmake
new file mode 100644
index 000000000..225bb6a05
--- /dev/null
+++ b/cmake/deps/rpcspec.cmake
@@ -0,0 +1,5 @@
+find_package(xrpl-rpc-spec REQUIRED CONFIG)
+
+if(NOT DEFINED RPCSPEC_IS_CLIO)
+  add_compile_definitions(RPCSPEC_IS_CLIO=1)
+endif()