4 files changed, 5 insertions, 5 deletions
diff --git a/Makefile b/Makefile
index 3e0c0ee..ee4d341 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ calculate_limits: calculate_limits.c
 
 solid_angle.o: solid_angle.c
 
-test: test.c solid_angle.c refractive_index.c muon.c
+test: test.c solid_angle.c optics.c muon.c
 
 clean:
 	rm *.o calculate_limits test
diff --git a/refractive_index.c b/optics.c
index d7d07f9..afcdd5e 100644
--- a/refractive_index.c
+++ b/optics.c
@@ -1,5 +1,5 @@
 #include <math.h>
-#include "refractive_index.h"
+#include "optics.h"
 
 static double A0 = 0.243905091;
 static double A1 = 9.53518094e-3;
diff --git a/refractive_index.h b/optics.h
index 5976eca..5e39ea1 100644
--- a/refractive_index.h
+++ b/optics.h
@@ -1,5 +1,5 @@
-#ifndef REFRACTIVE_INDEX_H
-#define REFRACTIVE_INDEX_H
+#ifndef OPTICS_H
+#define OPTICS_H
 
 double get_index(double p, double wavelength, double T);
 
diff --git a/test.c b/test.c
index 3448565..7c5dd33 100644
--- a/test.c
+++ b/test.c
@@ -1,7 +1,7 @@
 #include "solid_angle.h"
 #include <math.h>
 #include <stdio.h>
-#include "refractive_index.h"
+#include "optics.h"
 #include "muon.h"
 
 typedef int testFunction(char *err);