diff --git a/include/eigenpy/fwd.hpp b/include/eigenpy/fwd.hpp
index 3bc5937d05caebcd8be7c367693144acb31364b1..3dfa9b154b1704040938accfa60dc29f10aed109 100644
--- a/include/eigenpy/fwd.hpp
+++ b/include/eigenpy/fwd.hpp
@@ -14,15 +14,11 @@
   #include "eigenpy/numpy.hpp"
 #undef NO_IMPORT_ARRAY
 
-#ifdef NPY_ALIGNED
 #if EIGEN_VERSION_AT_LEAST(3,2,90)
   #define EIGENPY_DEFAULT_ALIGNMENT_VALUE Eigen::Aligned16
 #else
   #define EIGENPY_DEFAULT_ALIGNMENT_VALUE Eigen::Aligned
 #endif
-#else
-  #define EIGENPY_DEFAULT_ALIGNMENT_VALUE Eigen::Unaligned
-#endif
 
 #include "eigenpy/expose.hpp"