diff --git a/arch/arm64/configs/exynos7885-a7y18lte_defconfig b/arch/arm64/configs/exynos7885-a7y18lte_defconfig
index 41e79524a..7756cad07 100644
--- a/arch/arm64/configs/exynos7885-a7y18lte_defconfig
+++ b/arch/arm64/configs/exynos7885-a7y18lte_defconfig
@@ -577,7 +577,7 @@ CONFIG_PM_SLEEP_DEBUG=y
 CONFIG_PM_OPP=y
 CONFIG_PM_CLK=y
 CONFIG_PM_GENERIC_DOMAINS=y
-# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
+CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
 CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
 CONFIG_PM_GENERIC_DOMAINS_OF=y
 CONFIG_CPU_PM=y