diff --git a/Src/IACore/CMakeLists.txt b/Src/IACore/CMakeLists.txt
index 9c2ddee..00ba368 100644
--- a/Src/IACore/CMakeLists.txt
+++ b/Src/IACore/CMakeLists.txt
@@ -1,5 +1,6 @@
 set(SRC_FILES
     "imp/cpp/IPC.cpp"
+    "imp/cpp/XML.cpp"
     "imp/cpp/JSON.cpp"
     "imp/cpp/IACore.cpp"
     "imp/cpp/Logger.cpp"