diff --git a/src/Mod/CMakeLists.txt b/src/Mod/CMakeLists.txt
index bf02f119b..d90166054 100644
--- a/src/Mod/CMakeLists.txt
+++ b/src/Mod/CMakeLists.txt
@@ -44,3 +44,4 @@ if(FREECAD_BUILD_SANDBOX)
     add_subdirectory(Sandbox)
 endif(FREECAD_BUILD_SANDBOX)
 
+add_subdirectory(Surfaces)