diff --git a/src/main/java/ru/dbotthepony/mc/otm/capability/drive/AbstractMatteryDrive.java b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/drive/AbstractMatteryDrive.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/capability/drive/AbstractMatteryDrive.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/capability/drive/AbstractMatteryDrive.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/capability/drive/DrivePool.java b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/drive/DrivePool.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/capability/drive/DrivePool.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/capability/drive/DrivePool.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/capability/drive/ItemMatteryDrive.java b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/drive/ItemMatteryDrive.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/capability/drive/ItemMatteryDrive.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/capability/drive/ItemMatteryDrive.kt