diff --git a/FunctionSpace/CMakeLists.txt b/FunctionSpace/CMakeLists.txt
index 724e30c5ce17c4ede7b338f26005e8811178095c..6ba65dfec500f1b32fd8e20066f60a236e8c4432 100644
--- a/FunctionSpace/CMakeLists.txt
+++ b/FunctionSpace/CMakeLists.txt
@@ -14,7 +14,7 @@ set(SRC
   TriReferenceSpace.cpp
   QuadReferenceSpace.cpp
   TetReferenceSpace.cpp
-  HexReferenceSpace.cpp
+  #HexReferenceSpace.cpp
 
   ReferenceSpaceLagrange.cpp
   TriLagrangeReferenceSpace.cpp