diff --git a/keyboards/nscrkbd/config.h b/keyboards/nscrkbd/config.h
index 1ff105e454d6..11be175a43fc 100644
--- a/keyboards/nscrkbd/config.h
+++ b/keyboards/nscrkbd/config.h
@@ -18,5 +18,4 @@
 
 #define MASTER_LEFT
 #define DISABLE_SYNC_TIMER
-#define SPLIT_MAX_CONNECTION_ERRORS 10
-#define SELECT_SOFT_SERIAL_SPEED 4
\ No newline at end of file
+#define SPLIT_MAX_CONNECTION_ERRORS 10
\ No newline at end of file
diff --git a/keyboards/nscrkbd/keyboard.json b/keyboards/nscrkbd/keyboard.json
index 03bd32b52878..a22e253ea5ee 100644
--- a/keyboards/nscrkbd/keyboard.json
+++ b/keyboards/nscrkbd/keyboard.json
@@ -36,6 +36,7 @@
     "split": {
         "enabled": true,
         "soft_serial_pin": "A10",
+        "soft_serial_speed": 4,
         "transport": {
             "sync": {
                 "matrix_state": false