diff --git a/app/src/main/res/layout/reader_activity.xml b/app/src/main/res/layout/reader_activity.xml
index a2709b7c0..f00d72b7d 100755
--- a/app/src/main/res/layout/reader_activity.xml
+++ b/app/src/main/res/layout/reader_activity.xml
@@ -56,7 +56,7 @@
             android:background="?colorPrimary"
             android:elevation="4dp">
 
-            <androidx.appcompat.widget.Toolbar
+            <com.google.android.material.appbar.MaterialToolbar
                 android:id="@+id/toolbar"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"