2 files changed, 3 insertions, 5 deletions
diff --git a/keyboards/handwired/symmetric70_proto/promicro/config.h b/keyboards/handwired/symmetric70_proto/promicro/config.h
index 29bfbaae37..07f30032e6 100644
--- a/keyboards/handwired/symmetric70_proto/promicro/config.h
+++ b/keyboards/handwired/symmetric70_proto/promicro/config.h
@@ -44,11 +44,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* COL2ROW, ROW2COL */
 #define DIODE_DIRECTION COL2ROW
 
-/*
- * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
- */
-#define SOFT_SERIAL_PIN D0  // or D1, D2, D3, E6
-
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */
diff --git a/keyboards/handwired/symmetric70_proto/promicro/info.json b/keyboards/handwired/symmetric70_proto/promicro/info.json
index 782e713bfe..29feccc819 100644
--- a/keyboards/handwired/symmetric70_proto/promicro/info.json
+++ b/keyboards/handwired/symmetric70_proto/promicro/info.json
@@ -1,5 +1,8 @@
 {
     "keyboard_name": "Symmetric70 prototype promicro",
+    "split": {
+        "soft_serial_pin": "D0"
+    },
     "processor": "atmega32u4",
     "bootloader": "caterina"
 }