diff --git a/src/soc/intel/elkhartlake/Kconfig b/src/soc/intel/elkhartlake/Kconfig
index 8980bcc27d..f233ed90c9 100644
--- a/src/soc/intel/elkhartlake/Kconfig
+++ b/src/soc/intel/elkhartlake/Kconfig
@@ -68,6 +68,7 @@ config CPU_SPECIFIC_OPTIONS
 	select UDK_202005_BINDING
 	select USE_FSP_NOTIFY_PHASE_POST_PCI_ENUM
 	select SOC_INTEL_RAPL_DISABLE_VIA_MCHBAR
+	select X86_CLFLUSH_CAR
 
 config MAX_CPUS
 	int