diff --git a/keyboards/gmmk/gmmk2/p65/ansi/keymaps/achrovisual/config.h b/keyboards/gmmk/gmmk2/p65/ansi/keymaps/achrovisual/config.h
index 4ae7f273..998f5f1a 100644
--- a/keyboards/gmmk/gmmk2/p65/ansi/keymaps/achrovisual/config.h
+++ b/keyboards/gmmk/gmmk2/p65/ansi/keymaps/achrovisual/config.h
@@ -1,3 +1,5 @@
+#define RGB_MATRIX_DEFAULT_MODE RGB_MATRIX_CUSTOM_HOLOGRAPHICS_UNDERGLOW
+
 #undef ENABLE_RGB_MATRIX_ALPHAS_MODS
 #undef ENABLE_RGB_MATRIX_GRADIENT_UP_DOWN
 #undef ENABLE_RGB_MATRIX_GRADIENT_LEFT_RIGHT