diff --git a/java/dagger/hilt/android/internal/managers/ActivityComponentManager.java b/java/dagger/hilt/android/internal/managers/ActivityComponentManager.java
index 3fa4910d012..4a6c2fba3cf 100644
--- a/java/dagger/hilt/android/internal/managers/ActivityComponentManager.java
+++ b/java/dagger/hilt/android/internal/managers/ActivityComponentManager.java
@@ -36,7 +36,8 @@
  * because even the injector interface type is not a valid type if we have a hilt base class.
  *
  */
-public class ActivityComponentManager implements GeneratedComponentManager<Object> {
+public class ActivityComponentManager
+    implements GeneratedComponentManager<Object>, ActivityRetainedComponentAccessor {
   /** Entrypoint for {@link ActivityComponentBuilder}. */
   @EntryPoint
   @InstallIn(ActivityRetainedComponent.class)
diff --git a/java/dagger/hilt/android/internal/managers/BUILD b/java/dagger/hilt/android/internal/managers/BUILD
index ab1321f462b..ee9da6eb772 100644
--- a/java/dagger/hilt/android/internal/managers/BUILD
+++ b/java/dagger/hilt/android/internal/managers/BUILD
@@ -26,6 +26,7 @@ android_library(
     name = "managers",
     srcs = [
         "ActivityComponentManager.java",
+        "ActivityRetainedComponentAccessor.java",
         "ActivityRetainedComponentManager.java",
         "ApplicationComponentManager.java",
         "BroadcastReceiverComponentManager.java",