diff --git a/platforms/chibios/boards/SN_SN32F260/configs/chconf.h b/platforms/chibios/boards/SN_SN32F260/configs/chconf.h
index 8f843e038a34..7be313796820 100644
--- a/platforms/chibios/boards/SN_SN32F260/configs/chconf.h
+++ b/platforms/chibios/boards/SN_SN32F260/configs/chconf.h
@@ -54,8 +54,6 @@
 }
 #define PORT_IDLE_THREAD_STACK_SIZE     0
 #define PORT_INT_REQUIRED_STACK         0
-#define RAW_IN_CAPACITY                 1
-#define RAW_OUT_CAPACITY                1
 
 /* can't call sleep without the idle thread, must override related functions */
 #if CH_CFG_NO_IDLE_THREAD == TRUE
diff --git a/platforms/chibios/boards/SN_SN32F260/configs/config.h b/platforms/chibios/boards/SN_SN32F260/configs/config.h
new file mode 100644
index 000000000000..6b7720b05cc6
--- /dev/null
+++ b/platforms/chibios/boards/SN_SN32F260/configs/config.h
@@ -0,0 +1,22 @@
+/* Copyright 2022 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define RAW_IN_CAPACITY    1
+#define RAW_OUT_CAPACITY   1
+
+#include_next <config.h>