diff --git a/users/konstantin/rules.mk b/users/konstantin/rules.mk
index 1799d2be50..bf0ab979fb 100644
--- a/users/konstantin/rules.mk
+++ b/users/konstantin/rules.mk
@@ -2,6 +2,7 @@ SRC += konstantin.c
 ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
     SRC += rgb.c
 endif
+RGB_MATRIX_ENABLE ?= no
 ifneq ($(strip $(RGB_MATRIX_ENABLE)), no)
     SRC += rgb.c
 endif