diff --git a/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/Transformer.java b/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/Transformer.java
deleted file mode 100644
index afcaac67..00000000
--- a/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/Transformer.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package dev.openrs2.deob.ast.transform;
-
-import com.github.javaparser.ast.CompilationUnit;
-
-public abstract class Transformer {
-	public abstract void transform(CompilationUnit unit);
-}
diff --git a/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/Transformer.kt b/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/Transformer.kt
new file mode 100644
index 00000000..75454a41
--- /dev/null
+++ b/deob-ast/src/main/java/dev/openrs2/deob/ast/transform/Transformer.kt
@@ -0,0 +1,7 @@
+package dev.openrs2.deob.ast.transform
+
+import com.github.javaparser.ast.CompilationUnit
+
+abstract class Transformer {
+    abstract fun transform(unit: CompilationUnit)
+}