diff --git a/config-iot-lts2018 b/config-iot-lts2018
index dce6f219..8d3b53a6 100644
--- a/config-iot-lts2018
+++ b/config-iot-lts2018
@@ -29,9 +29,9 @@ CONFIG_HAVE_KERNEL_LZ4=y
 # CONFIG_KERNEL_GZIP is not set
 # CONFIG_KERNEL_BZIP2 is not set
 # CONFIG_KERNEL_LZMA is not set
-CONFIG_KERNEL_XZ=y
+# CONFIG_KERNEL_XZ is not set
 # CONFIG_KERNEL_LZO is not set
-# CONFIG_KERNEL_LZ4 is not set
+CONFIG_KERNEL_LZ4=y
 CONFIG_DEFAULT_HOSTNAME="clr"
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y