diff --git a/target/linux/x86/config-4.9 b/target/linux/x86/config-4.9
index 654935ae20..bcc03aee2e 100644
--- a/target/linux/x86/config-4.9
+++ b/target/linux/x86/config-4.9
@@ -538,6 +538,7 @@ CONFIG_X86_CMPXCHG64=y
 # CONFIG_X86_CPUFREQ_NFORCE2 is not set
 # CONFIG_X86_CPUID is not set
 # CONFIG_X86_DEBUG_FPU is not set
+# CONFIG_X86_DECODER_SELFTEST is not set
 # CONFIG_X86_EXTENDED_PLATFORM is not set
 # CONFIG_X86_E_POWERSAVER is not set
 CONFIG_X86_F00F_BUG=y