diff --git a/1-getting-started/lessons/3-sensors-and-actuators/translations/pi-sensor.kr.md b/1-getting-started/lessons/3-sensors-and-actuators/translations/pi-sensor.ko.md
similarity index 100%
rename from 1-getting-started/lessons/3-sensors-and-actuators/translations/pi-sensor.kr.md
rename to 1-getting-started/lessons/3-sensors-and-actuators/translations/pi-sensor.ko.md