diff --git a/keyboards/splitkb/kyria/rev1/proton_c/rules.mk b/keyboards/splitkb/kyria/rev1/proton_c/rules.mk
index 1a5f9a7cb3..496312fe98 100644
--- a/keyboards/splitkb/kyria/rev1/proton_c/rules.mk
+++ b/keyboards/splitkb/kyria/rev1/proton_c/rules.mk
@@ -9,4 +9,4 @@ WS2812_DRIVER = pwm
 SERIAL_DRIVER = usart
 AUDIO_ENABLE = no
 LTO_ENABLE = no
-CONVERT_TO_PROTON_C = yes
+CONVERT_TO = proton_c
diff --git a/keyboards/splitkb/kyria/rev2/proton_c/rules.mk b/keyboards/splitkb/kyria/rev2/proton_c/rules.mk
index 1a5f9a7cb3..496312fe98 100644
--- a/keyboards/splitkb/kyria/rev2/proton_c/rules.mk
+++ b/keyboards/splitkb/kyria/rev2/proton_c/rules.mk
@@ -9,4 +9,4 @@ WS2812_DRIVER = pwm
 SERIAL_DRIVER = usart
 AUDIO_ENABLE = no
 LTO_ENABLE = no
-CONVERT_TO_PROTON_C = yes
+CONVERT_TO = proton_c