diff --git a/BeefySysLib/CMakeLists.txt b/BeefySysLib/CMakeLists.txt
index ef8f5391..21b20fd7 100644
--- a/BeefySysLib/CMakeLists.txt
+++ b/BeefySysLib/CMakeLists.txt
@@ -285,11 +285,13 @@ file(GLOB SRC_FILES
     util/Heap.cpp
     util/Json.cpp
     util/MappedFile.cpp
+    util/MathUtils.cpp
     util/Matrix4.cpp
     util/PerfTimer.cpp
     util/Point.cpp
     util/PolySpline.cpp
     util/Quaternion.cpp
+    util/Sphere.cpp
     util/String.cpp
     util/StackHelper.cpp
     util/ThreadPool.cpp