diff --git a/boards/arm/kinetis/freedom-k64f/configs/demo/defconfig b/boards/arm/kinetis/freedom-k64f/configs/demo/defconfig
index beee227ae4..41f0f5c9ef 100644
--- a/boards/arm/kinetis/freedom-k64f/configs/demo/defconfig
+++ b/boards/arm/kinetis/freedom-k64f/configs/demo/defconfig
@@ -32,6 +32,7 @@ CONFIG_KINETIS_FTM0=y
 CONFIG_KINETIS_FTM0_CHANNEL=2
 CONFIG_KINETIS_FTM0_PWM=y
 CONFIG_KINETIS_GPIOIRQ=y
+CONFIG_KINETIS_I2C0=y
 CONFIG_KINETIS_PORTEINTS=y
 CONFIG_KINETIS_SDHC=y
 CONFIG_KINETIS_UART0=y
@@ -59,6 +60,7 @@ CONFIG_SDCLONE_DISABLE=y
 CONFIG_START_DAY=25
 CONFIG_START_MONTH=3
 CONFIG_START_YEAR=2013
+CONFIG_SYSTEM_I2CTOOL=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
 CONFIG_UART0_SERIAL_CONSOLE=y