diff --git a/src/main/c/main_taschenrechner.c b/src/main/c/main_calculator.c
similarity index 80%
rename from src/main/c/main_taschenrechner.c
rename to src/main/c/main_calculator.c
index 79ece02..013714e 100644
--- a/src/main/c/main_taschenrechner.c
+++ b/src/main/c/main_calculator.c
@@ -2,7 +2,7 @@
 // #include <string.h>
 #include <stdlib.h>
 
-#include "taschenrechner.h"
+#include "calculator.h"
 
 
 int add(int a, int b) {