diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c9024257ea76c5c90809e179234591945fe939a..d8d8a79e61072d0e53893512824df798a89ffe74 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -166,6 +166,7 @@ set(${PROJECT_NAME}_HEADERS
     include/eigenpy/sparse/eigen-from-python.hpp
     include/eigenpy/scipy-allocator.hpp
     include/eigenpy/scipy-type.hpp
+    include/eigenpy/variant.hpp
     include/eigenpy/swig.hpp
     include/eigenpy/version.hpp)