diff --git a/engine/CMakeLists.txt b/engine/CMakeLists.txt
index 5ad164bd..c3561067 100644
--- a/engine/CMakeLists.txt
+++ b/engine/CMakeLists.txt
@@ -413,14 +413,14 @@ add_library(XCEngine STATIC
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/UI/Core/UIElementTree.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/UI/Core/UIContext.h
     ${CMAKE_CURRENT_SOURCE_DIR}/src/UI/Core/UIBuildContext.cpp
-    /src/UI/Core/UIElementTree.cpp
-    /include/XCEngine/UI/Style/StyleTypes.h
-    /include/XCEngine/UI/Style/Theme.h
-    /include/XCEngine/UI/Style/StyleSet.h
-    /include/XCEngine/UI/Style/StyleResolver.h
-    /src/UI/Style/StyleTypes.cpp
-    /src/UI/Style/Theme.cpp
-    /src/UI/Style/StyleResolver.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/UI/Core/UIElementTree.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/UI/Style/StyleTypes.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/UI/Style/Theme.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/UI/Style/StyleSet.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/UI/Style/StyleResolver.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/UI/Style/StyleTypes.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/UI/Style/Theme.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/UI/Style/StyleResolver.cpp
 
     # Input
     ${CMAKE_CURRENT_SOURCE_DIR}/include/XCEngine/Input/InputTypes.h