diff --git a/src/IRremoteInt.h b/src/IRremoteInt.h
index 1c319ac..1baa05d 100644
--- a/src/IRremoteInt.h
+++ b/src/IRremoteInt.h
@@ -18,15 +18,9 @@
 #define IRremoteint_h
 
 //------------------------------------------------------------------------------
-// Include the right Arduino header
+// Include the Arduino header
 //
-#if defined(ARDUINO) && (ARDUINO >= 100)
-#	include <Arduino.h>
-#else
-#	if !defined(IRPRONTO)
-#		include <WProgram.h>
-#	endif
-#endif
+#include <Arduino.h>
 
 //------------------------------------------------------------------------------
 // This handles definition and access to global variables