diff --git a/test.cpp b/test.cpp
index e4b6725ffdddeda3bf183c6cab01b0940a47a0c0..3a7b8af6c600787b0ca706696045c4c4769aa950 100644
--- a/test.cpp
+++ b/test.cpp
@@ -4,7 +4,7 @@
 #include <iostream>
 
 int main(){
-  std::fstream lisfile("LIS.txt");
+  std::fstream lisfile("Vittino_et_al_e-_LIS.txt");
   double tmp1;
   double tmp2;
   Heliosphere h; //define an object of the class to modulate the interstellar spectrum