diff --git a/src/Kaleidoscope-Hardware-OLKB-Planck.h b/src/Kaleidoscope-Hardware-OLKB-Planck.h
index a3e5938f..cfbd49af 100644
--- a/src/Kaleidoscope-Hardware-OLKB-Planck.h
+++ b/src/Kaleidoscope-Hardware-OLKB-Planck.h
@@ -17,4 +17,6 @@
  */
 
 #pragma once
+
+#define KALEIDOSCOPE_WITH_ATMEGA_KEYBOARD 1
 #include "kaleidoscope/hardware/olkb/Planck.h"
diff --git a/src/Kaleidoscope-Hardware-Technomancy-Atreus.h b/src/Kaleidoscope-Hardware-Technomancy-Atreus.h
index f896d7ec..1f5eb6f6 100644
--- a/src/Kaleidoscope-Hardware-Technomancy-Atreus.h
+++ b/src/Kaleidoscope-Hardware-Technomancy-Atreus.h
@@ -17,4 +17,6 @@
  */
 
 #pragma once
+
+#define KALEIDOSCOPE_WITH_ATMEGA_KEYBOARD 1
 #include "kaleidoscope/hardware/technomancy/Atreus.h"
diff --git a/src/kaleidoscope/hardware/ATMegaKeyboard.cpp b/src/kaleidoscope/hardware/ATMegaKeyboard.cpp
index 1e1130f5..2feaa996 100644
--- a/src/kaleidoscope/hardware/ATMegaKeyboard.cpp
+++ b/src/kaleidoscope/hardware/ATMegaKeyboard.cpp
@@ -15,9 +15,10 @@
  * this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#if ARDUINO_AVR_PLANCK || ARDUINO_AVR_ATREUS
-
 #include "Kaleidoscope.h"
+
+#if KALEIDOSCOPE_WITH_ATMEGA_KEYBOARD
+
 #include "kaleidoscope/hardware/ATMegaKeyboard.h"
 
 namespace kaleidoscope {
diff --git a/src/kaleidoscope/hardware/ATMegaKeyboard.h b/src/kaleidoscope/hardware/ATMegaKeyboard.h
index d87a4cbd..e63efdde 100644
--- a/src/kaleidoscope/hardware/ATMegaKeyboard.h
+++ b/src/kaleidoscope/hardware/ATMegaKeyboard.h
@@ -17,7 +17,7 @@
 
 #pragma once
 
-#if ARDUINO_AVR_PLANCK || ARDUINO_AVR_ATREUS
+#if KALEIDOSCOPE_WITH_ATMEGA_KEYBOARD
 
 #include <Arduino.h>
 #include <KeyboardioHID.h>