diff --git a/src/main/c/Calculator/calculator.c b/src/main/c/Calculator/calculator.c
index da9d5f1..b7f10ce 100644
--- a/src/main/c/Calculator/calculator.c
+++ b/src/main/c/Calculator/calculator.c
@@ -57,6 +57,12 @@ int main() {
                 scanf("%lf %lf", &num1, &num2);
                 result = exponent(num1, num2);
                 printf("Result: %lf\n", result);
+                break;
+                case 6:
+                printf("Enter two numbers: ");
+                scanf("%lf %lf", &num1, &num2);
+                result = modulus(num1, num2);
+                printf("Result: %lf\n", result);
                 break;
                     case :
                 printf("Exiting...\n");