diff --git a/src/ScreenDimensions.h b/src/ScreenDimensions.h
index e352f653b5..f0ab4f71e8 100644
--- a/src/ScreenDimensions.h
+++ b/src/ScreenDimensions.h
@@ -33,7 +33,7 @@ namespace ScreenDimensions
  * This is referenced in ArrowEffects, GameManager, NoteField, and SnapDisplay.
  * XXX: doesn't always have to be 64. -aj
  */
-#define	ARROW_SIZE	(64)
+constexpr int	ARROW_SIZE = 64;
 
 #endif