diff --git a/src/main/java/roomescape/reservation/business/ReservationService.java b/src/main/java/roomescape/reservation/business/ReservationService.kt
similarity index 100%
rename from src/main/java/roomescape/reservation/business/ReservationService.java
rename to src/main/java/roomescape/reservation/business/ReservationService.kt