diff --git a/target/linux/kirkwood/config-4.14 b/target/linux/kirkwood/config-4.14
index d907573379..9481d0a3cf 100644
--- a/target/linux/kirkwood/config-4.14
+++ b/target/linux/kirkwood/config-4.14
@@ -199,8 +199,6 @@ CONFIG_KIRKWOOD_THERMAL=y
 CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_NETXBIG=y
 CONFIG_LEDS_NS2=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
 CONFIG_LIBFDT=y
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
diff --git a/target/linux/kirkwood/config-4.19 b/target/linux/kirkwood/config-4.19
index a378fb0400..d7ea9e9eef 100644
--- a/target/linux/kirkwood/config-4.19
+++ b/target/linux/kirkwood/config-4.19
@@ -195,8 +195,6 @@ CONFIG_KIRKWOOD_THERMAL=y
 CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_NETXBIG=y
 CONFIG_LEDS_NS2=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
 CONFIG_LIBFDT=y
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_LZO_COMPRESS=y