diff --git a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerMainActivity.java b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerMainActivity.java
index acd6d6a8..e6fcdb43 100644
--- a/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerMainActivity.java
+++ b/component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerMainActivity.java
@@ -25,15 +25,13 @@ import one.nem.lacerta.utils.LacertaLogger;
 @AndroidEntryPoint
 public class ViewerMainActivity extends AppCompatActivity {
 
+    @Inject
     LacertaLogger logger;
 
     @Inject
-    public ViewerMainActivity(LacertaLogger logger) {
-        this.logger = logger;
-        logger.debug(TAG, "ViewerMainActivity created");
+    public ViewerMainActivity() {
     }
 
-
     // Variables
     private static final String TAG = "ViewerMainActivity";
     String documentId;
diff --git a/component/viewer/src/main/res/layout/activity_viewer_main.xml b/component/viewer/src/main/res/layout/activity_viewer_main.xml
index 816439b5..73290603 100644
--- a/component/viewer/src/main/res/layout/activity_viewer_main.xml
+++ b/component/viewer/src/main/res/layout/activity_viewer_main.xml
@@ -9,15 +9,13 @@
 
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/nav_host_fragment"
-        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:name="one.nem.lacerta.component.viewer.ComponentViewerTopFragment"
         android:layout_width="0dp"
         android:layout_height="0dp"
         app:defaultNavHost="true"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:navGraph="@navigation/component_viewer_navigation"
-        tools:layout="@layout/fragment_component_viewer_top" />
+        app:layout_constraintTop_toTopOf="parent"/>
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file