diff --git a/src/cpu/intel/haswell/Kconfig b/src/cpu/intel/haswell/Kconfig
index 13861f9..152059f 100644
--- a/src/cpu/intel/haswell/Kconfig
+++ b/src/cpu/intel/haswell/Kconfig
@@ -8,7 +8,8 @@
 	def_bool y
 	select SMP
 	select SSE2
-	select UDELAY_LAPIC
+	select UDELAY_TSC
+	select TSC_CONSTANT_RATE
 	select SMM_TSEG
 	select SMM_MODULES
 	select RELOCATABLE_MODULES