diff --git a/src/Color.h b/src/Color.h
index 3d75e99..b01a9c6 100644
--- a/src/Color.h
+++ b/src/Color.h
@@ -19,7 +19,7 @@ public:
 
 };
 
-const Color black = Color(0, 0, 0);
-const Color white = Color(255, 255, 255);
+const static Color black = Color(0, 0, 0);
+const static Color white = Color(255, 255, 255);
 
 #endif
diff --git a/src/KeyCode.h b/src/KeyCode.h
index 65ab74d..a59a5cd 100644
--- a/src/KeyCode.h
+++ b/src/KeyCode.h
@@ -9,7 +9,7 @@ public:
     int getValue();
 };
 
-const KeyCode Backspace = KeyCode(8);
-const KeyCode tabulator = KeyCode(9);
+const static KeyCode Backspace = KeyCode(8);
+const static KeyCode tabulator = KeyCode(9);
 
 #endif