diff --git a/config/boards/arm/corne/corne_left_defconfig b/config/boards/arm/corne/corne_left_defconfig
index 79613bff7..3df25503b 100644
--- a/config/boards/arm/corne/corne_left_defconfig
+++ b/config/boards/arm/corne/corne_left_defconfig
@@ -8,6 +8,10 @@ CONFIG_SOC_NRF52840_QIAA=y
 CONFIG_BOARD_CORNE_LEFT=y
 CONFIG_ZMK_SLEEP=y
 
+# Enable 32kHz crystal
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_30PPM=y
+
 
 # Enable MPU
 CONFIG_ARM_MPU=y