diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/WindowFocusChangeListener.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/WindowFocusChangeListener.kt
similarity index 76%
rename from packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/WindowFocusChangeListener.java
rename to packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/WindowFocusChangeListener.kt
index 56226b71765..ae7d3c489d5 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/WindowFocusChangeListener.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/WindowFocusChangeListener.kt
@@ -5,11 +5,11 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-package com.facebook.react.bridge;
+package com.facebook.react.bridge
 
 /*
  * Listener for receiving window focus events.
  */
 public interface WindowFocusChangeListener {
-  void onWindowFocusChange(boolean hasFocus);
+  public fun onWindowFocusChange(hasFocus: Boolean): Unit
 }