diff --git a/boards/arc/em_starterkit/em_starterkit_defconfig b/boards/arc/em_starterkit/em_starterkit_defconfig
index 1d5a74bd714..72a2c7f423b 100644
--- a/boards/arc/em_starterkit/em_starterkit_defconfig
+++ b/boards/arc/em_starterkit/em_starterkit_defconfig
@@ -2,7 +2,6 @@ CONFIG_ARC=y
 CONFIG_SOC_EM9D=y
 CONFIG_BOARD_EM_STARTERKIT=y
 CONFIG_SYS_CLOCK_TICKS_PER_SEC=200
-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=20000000
 CONFIG_XIP=n
 CONFIG_NANO_TIMERS=y
 CONFIG_PRINTK=y