diff --git a/reference/Eigen_demo/Eigen_demo.upp b/reference/Eigen_demo/Eigen_demo.upp
index d39ae16a9..2dfd732c9 100644
--- a/reference/Eigen_demo/Eigen_demo.upp
+++ b/reference/Eigen_demo/Eigen_demo.upp
@@ -4,6 +4,10 @@ uses
 	Core,
 	plugin\Eigen;
 
+options(MSC) /bigobj;
+
+options(MSC) -D_SCL_SECURE_NO_WARNINGS;
+
 file
 	eigen_demo.cpp,
 	non-linear.cpp,
diff --git a/reference/Eigen_demo/eigen_demo.cpp b/reference/Eigen_demo/eigen_demo.cpp
index 9964a58e3..1aed6ee22 100644
--- a/reference/Eigen_demo/eigen_demo.cpp
+++ b/reference/Eigen_demo/eigen_demo.cpp
@@ -1,9 +1,8 @@
 #include <Core/Core.h>
+#include <plugin/Eigen/Eigen.h>
 
 using namespace Upp;
 
-#include <plugin/Eigen/Eigen.h>
-
 using namespace Eigen;
 
 void NonLinearTests();
diff --git a/reference/Eigen_demo/fft.cpp b/reference/Eigen_demo/fft.cpp
index 47abfb6a6..2ca46169d 100644
--- a/reference/Eigen_demo/fft.cpp
+++ b/reference/Eigen_demo/fft.cpp
@@ -1,9 +1,8 @@
 #include <Core/Core.h>
+#include <plugin/Eigen/Eigen.h>
 
 using namespace Upp;
 
-#include <plugin/Eigen/Eigen.h>
-
 #ifdef USE_FFTW
 #include <fftw3.h>
 #endif
diff --git a/reference/Eigen_demo/non-linear.cpp b/reference/Eigen_demo/non-linear.cpp
index c8d0661ac..81dde582a 100644
--- a/reference/Eigen_demo/non-linear.cpp
+++ b/reference/Eigen_demo/non-linear.cpp
@@ -1,9 +1,8 @@
 #include <Core/Core.h>
+#include <plugin/Eigen/Eigen.h>
 
 using namespace Upp;
 
-#include <plugin/Eigen/Eigen.h>
-
 using namespace Eigen;
 
 #define VerifyIsApprox(a, b)	(fabs(a-(b)) < 0.0001)