diff --git a/android/src/main/java/com/alpha0010/fs/FileAccessModule.kt b/android/src/main/java/com/alpha0010/fs/FileAccessModule.kt
index fbcc883..248a938 100644
--- a/android/src/main/java/com/alpha0010/fs/FileAccessModule.kt
+++ b/android/src/main/java/com/alpha0010/fs/FileAccessModule.kt
@@ -35,7 +35,7 @@ class FileAccessModule internal constructor(context: ReactApplicationContext) :
     return NAME
   }
 
-  override fun getConstants(): MutableMap<String, String?> {
+  override fun getTypedExportedConstants(): MutableMap<String, String?> {
     val sdCardDir = try {
       // Search via env may not be reliable. Recent Android versions
       // discourage/restrict full access to public locations.
diff --git a/android/src/oldarch/FileAccessSpec.kt b/android/src/oldarch/FileAccessSpec.kt
index 20f4119..736324b 100644
--- a/android/src/oldarch/FileAccessSpec.kt
+++ b/android/src/oldarch/FileAccessSpec.kt
@@ -8,6 +8,10 @@ import com.facebook.react.bridge.ReadableMap
 abstract class FileAccessSpec internal constructor(context: ReactApplicationContext) :
   ReactContextBaseJavaModule(context) {
 
+  protected abstract fun getTypedExportedConstants(): MutableMap<String, String?>
+
+  override fun getConstants() = getTypedExportedConstants()
+
   abstract fun addListener(eventType: String)
   abstract fun removeListeners(count: Double)
   abstract fun appendFile(path: String, data: String, encoding: String, promise: Promise)