diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/commands/CommandEcoarmor.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/commands/CommandEcoarmor.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/commands/CommandEcoarmor.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/commands/CommandEcoarmor.kt
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/commands/CommandGive.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/commands/CommandGive.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/commands/CommandGive.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/commands/CommandGive.kt
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/commands/CommandReload.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/commands/CommandReload.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/commands/CommandReload.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/commands/CommandReload.kt
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/EffectiveDurabilityListener.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/sets/EffectiveDurabilityListener.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/EffectiveDurabilityListener.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/sets/EffectiveDurabilityListener.kt
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/PreventSkullPlaceListener.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/sets/PreventSkullPlaceListener.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/sets/util/PreventSkullPlaceListener.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/sets/PreventSkullPlaceListener.kt
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/upgrades/listeners/AdvancementShardListener.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/upgrades/AdvancementShardListener.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/upgrades/listeners/AdvancementShardListener.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/upgrades/AdvancementShardListener.kt
diff --git a/eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/upgrades/listeners/CrystalListener.java b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/upgrades/CrystalListener.kt
similarity index 100%
rename from eco-core/core-plugin/src/main/java/com/willfp/ecoarmor/upgrades/listeners/CrystalListener.java
rename to eco-core/core-plugin/src/main/kotlin/com/willfp/ecoarmor/upgrades/CrystalListener.kt