diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c76dd1da5b171b1de4645091b9a59d053f91abe..f2d9120969a1928fe0a2e1ad89ce01e84685e2df 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,7 +96,7 @@ set(GMSH_API
     Common/OS.h Common/StringUtils.h Common/OpenFile.h
   Numeric/Numeric.h Numeric/GaussIntegration.h Numeric/polynomialBasis.h
     Numeric/JacobianBasis.h Numeric/bezierBasis.h Numeric/fullMatrix.h
-    Numeric/simpleFunction.h Numeric/cartesian.h
+    Numeric/simpleFunction.h Numeric/cartesian.h Numeric/ElementType.h
   Geo/GModel.h Geo/GEntity.h Geo/GPoint.h Geo/GVertex.h Geo/GEdge.h 
     Geo/GFace.h Geo/GRegion.h Geo/GEdgeLoop.h Geo/GEdgeCompound.h 
     Geo/GFaceCompound.h Geo/GRegionCompound.h Geo/GRbf.h Geo/MVertex.h