diff --git a/src/main/c/main_taschenrechner.c b/src/main/c/main_calculator.c
similarity index 99%
rename from src/main/c/main_taschenrechner.c
rename to src/main/c/main_calculator.c
index 414021b..76c9a10 100644
--- a/src/main/c/main_taschenrechner.c
+++ b/src/main/c/main_calculator.c
@@ -3,7 +3,7 @@
 #include <stdlib.h>
 #include <math.h>
 
-#include "taschenrechner.h"
+#include "calculator.h"
 
 
 double add(double a, double b) {
@@ -1373,4 +1373,4 @@ int displayMenu(){
     printf("\n0: Exit calculator\n");
 
     return 1; // return 1 to check if the function works 
-}
\ No newline at end of file
+}