diff --git a/src/C++/Driver/src/test.cpp b/src/C++/Driver/src/test.cpp
index cf0329b..3a5cc56 100644
--- a/src/C++/Driver/src/test.cpp
+++ b/src/C++/Driver/src/test.cpp
@@ -8,8 +8,8 @@ using namespace std;
 CKobuki robot;
 int command();
 
-const char forward = '1';
-const char rotate = '2';
+const char FORWARD = '1';
+const char ROTATE = '2';
 
 int main() {
   unsigned char *null_ptr(0);
@@ -41,7 +41,7 @@ int command() {
   cin >> input;
 
   switch (input) {
-  case forward: {
+  case FORWARD: {
     int distance;
     std::cout << "Enter distance to move forward: ";
     cin >> distance;