diff --git a/app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.java b/app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.java
deleted file mode 100644
index f23179b..0000000
--- a/app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package com.wbrawner.simplemarkdown.view;
-
-/**
- * Created by billy on 8/22/17.
- */
-
-public interface MarkdownPreviewView {
-    void updatePreview(String html);
-}
diff --git a/app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.kt b/app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.kt
new file mode 100644
index 0000000..89d006f
--- /dev/null
+++ b/app/src/main/java/com/wbrawner/simplemarkdown/view/MarkdownPreviewView.kt
@@ -0,0 +1,5 @@
+package com.wbrawner.simplemarkdown.view
+
+interface MarkdownPreviewView {
+    fun updatePreview(html: String)
+}