diff --git a/examples/csv2eigen.hpp b/examples/csv2eigen.cpp
similarity index 93%
rename from examples/csv2eigen.hpp
rename to examples/csv2eigen.cpp
index bc0c0a0..7e91272 100644
--- a/examples/csv2eigen.hpp
+++ b/examples/csv2eigen.cpp
@@ -5,7 +5,7 @@
 using namespace std;
 using namespace Eigen;
 
-inline MatrixXd CSV2Eigen(string file2Convert){
+MatrixXd CSV2Eigen(string file2Convert){
 
     vector<double> matrixEntries;
 
diff --git a/examples/reference-FTCS_2D_closed.cpp b/examples/reference-FTCS_2D_closed.cpp
index 165d00e..33f50e7 100644
--- a/examples/reference-FTCS_2D_closed.cpp
+++ b/examples/reference-FTCS_2D_closed.cpp
@@ -1,5 +1,5 @@
 #include <tug/Simulation.hpp>
-#include "csv2eigen.hpp"
+#include "csv2eigen.cpp"
 #include "Eigen/Core"
 
 int main(int argc, char *argv[]) {