diff --git a/uppsrc/plugin/Eigen/Eigen.h b/uppsrc/plugin/Eigen/Eigen.h
index 15452af20..2c0c1ba91 100644
--- a/uppsrc/plugin/Eigen/Eigen.h
+++ b/uppsrc/plugin/Eigen/Eigen.h
@@ -5,6 +5,8 @@
 #define EIGEN_DENSEBASE_PLUGIN 	<plugin/Eigen/ToStringPlugin.h>
 #define EIGEN_TENSOR_PLUGIN		<plugin/Eigen/ToStringPlugin.h>
 
+#define EIGEN_MPL2_ONLY
+
 #ifndef _DEBUG
 #define EIGEN_NO_DEBUG
 #endif