diff --git a/src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/ButtonPanel.java b/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/ButtonPanel.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/ButtonPanel.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/ButtonPanel.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/EditBoxPanel.java b/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/EditBoxPanel.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/EditBoxPanel.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/EditBoxPanel.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/Label.java b/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/Label.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/Label.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/Label.kt
diff --git a/src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/MinecraftWidgetPanel.java b/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/MinecraftWidgetPanel.kt
similarity index 100%
rename from src/main/java/ru/dbotthepony/mc/otm/client/screen/panels/MinecraftWidgetPanel.java
rename to src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/MinecraftWidgetPanel.kt