diff --git a/test/array.cpp b/test/array.cpp
index 5e2e0e6c8..c1538c108 100644
--- a/test/array.cpp
+++ b/test/array.cpp
@@ -6,7 +6,7 @@
 // This Source Code Form is subject to the terms of the Mozilla
 // Public License v. 2.0. If a copy of the MPL was not distributed
 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-#define EIGEN_DONT_VECTORIZE
+
 #include "main.h"
 
 template<typename ArrayType> void array(const ArrayType& m)