diff --git a/soc/arm/nxp_imx/rt6xx/Kconfig.defconfig.mimxrt685_cm33 b/soc/arm/nxp_imx/rt6xx/Kconfig.defconfig.mimxrt685_cm33
index f05ae476f5f..290cea1b414 100644
--- a/soc/arm/nxp_imx/rt6xx/Kconfig.defconfig.mimxrt685_cm33
+++ b/soc/arm/nxp_imx/rt6xx/Kconfig.defconfig.mimxrt685_cm33
@@ -45,9 +45,6 @@ if MCUX_OS_TIMER
 config SYS_CLOCK_HW_CYCLES_PER_SEC
 	default 1000000
 
-config SYS_CLOCK_TICKS_PER_SEC
-	default 1000000
-
 endif # MCUX_OS_TIMER
 
 if CORTEX_M_SYSTICK