diff --git a/Marlin/Marlin.h b/Marlin/Marlin.h
index bf9d000106..c8e79288a4 100644
--- a/Marlin/Marlin.h
+++ b/Marlin/Marlin.h
@@ -164,11 +164,6 @@ extern const char axis_codes[XYZE];
               G38_endstop_hit; // flag from the interrupt handler to indicate if the endstop went active
 #endif
 
-/**
- * The axis order in all axis related arrays is X, Y, Z, E
- */
-#define _AXIS(AXIS) AXIS ##_AXIS
-
 void enable_all_steppers();
 void disable_e_stepper(const uint8_t e);
 void disable_e_steppers();
diff --git a/Marlin/macros.h b/Marlin/macros.h
index 450236c69b..75f32e852c 100644
--- a/Marlin/macros.h
+++ b/Marlin/macros.h
@@ -29,6 +29,9 @@
 #define ABC  3
 #define XYZ  3
 
+// For use in macros that take a single axis letter
+#define _AXIS(AXIS) AXIS ##_AXIS
+
 #define _XMIN_ 100
 #define _YMIN_ 200
 #define _ZMIN_ 300