diff --git a/src/main/java/ru/dbotthepony/mc/otm/block/BlockBlackHole.java b/src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockBlackHole.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/block/BlockBlackHole.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockBlackHole.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/block/BlockCargoCrate.java b/src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockCargoCrate.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/block/BlockCargoCrate.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockCargoCrate.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/block/BlockDriveRack.java b/src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockDriveRack.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/block/BlockDriveRack.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockDriveRack.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/block/BlockItemMonitor.java b/src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockItemMonitor.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/block/BlockItemMonitor.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/block/BlockItemMonitor.kt