diff --git a/src/test/c/test_calculator.c b/src/test/c/test_calculator.c
index 641fceb..7e029bd 100644
--- a/src/test/c/test_calculator.c
+++ b/src/test/c/test_calculator.c
@@ -1,5 +1,5 @@
 #include "unity.h"
-
+#include "BasicMode"
 #include "main_calculator.h"
 #include "testForOperator.h"
 #include "testForNumber.h"