diff --git a/app/boards/shields/slicemk_ergodox/Kconfig.defconfig b/app/boards/shields/slicemk_ergodox/Kconfig.defconfig
index ce78da3d92a2..c4035cea1258 100644
--- a/app/boards/shields/slicemk_ergodox/Kconfig.defconfig
+++ b/app/boards/shields/slicemk_ergodox/Kconfig.defconfig
@@ -32,4 +32,13 @@ config BT_MAX_PAIRED
 config BT_MAX_CONN
 	default 7
 
+config ZMK_SPLIT_BLE_PREF_INT
+	default 6
+
+config ZMK_SPLIT_BLE_PREF_LATENCY
+	default 399
+
+config ZMK_SPLIT_BLE_PREF_TIMEOUT
+	default 900
+
 endif