diff --git a/target/linux/x86/legacy/config-default b/target/linux/x86/legacy/config-default
index 2bcdef7404..0061ce2a39 100644
--- a/target/linux/x86/legacy/config-default
+++ b/target/linux/x86/legacy/config-default
@@ -149,6 +149,7 @@ CONFIG_ISO9660_FS=y
 # CONFIG_LCD_CLASS_DEVICE is not set
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
+CONFIG_M486=y
 # CONFIG_MDA_CONSOLE is not set
 CONFIG_MFD_CORE=y
 CONFIG_MFD_INTEL_LPSS=y