diff --git a/MenuEntry.cpp b/MenuEntry.cpp
index 1201270..1b6cc5f 100644
--- a/MenuEntry.cpp
+++ b/MenuEntry.cpp
@@ -19,7 +19,7 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 */
 
 
-#include <arduino.h>
+#include <Arduino.h>
 #include "MenuEntry.h"
 #include "MenuManager.h"
 
diff --git a/MenuEntry.h b/MenuEntry.h
index 7ce0d9c..9c8c556 100644
--- a/MenuEntry.h
+++ b/MenuEntry.h
@@ -19,7 +19,7 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 */
 
 
-#include <arduino.h>
+#include <Arduino.h>
 
 #ifndef MenuEntry_h
 #define MenuEntry_h 1
diff --git a/MenuLCD.cpp b/MenuLCD.cpp
index 93f8713..899f0ff 100644
--- a/MenuLCD.cpp
+++ b/MenuLCD.cpp
@@ -18,7 +18,7 @@ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-#include <arduino.h>
+#include <Arduino.h>
 #include <LiquidCrystal.h>
 #include "MenuLCD.h"