diff --git a/src/main/java/com/owncloud/android/ui/preview/PreviewTextFragment.java b/src/main/java/com/owncloud/android/ui/preview/PreviewTextFragment.java
index 8364a03ff422..a3bcc560f33b 100644
--- a/src/main/java/com/owncloud/android/ui/preview/PreviewTextFragment.java
+++ b/src/main/java/com/owncloud/android/ui/preview/PreviewTextFragment.java
@@ -37,6 +37,7 @@
 import android.widget.TextView;
 
 import com.nextcloud.client.account.UserAccountManager;
+import com.nextcloud.client.di.Injectable;
 import com.owncloud.android.R;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.files.FileMenuFilter;
@@ -67,7 +68,7 @@
 import androidx.appcompat.widget.SearchView;
 import androidx.core.view.MenuItemCompat;
 
-public class PreviewTextFragment extends FileFragment implements SearchView.OnQueryTextListener {
+public class PreviewTextFragment extends FileFragment implements SearchView.OnQueryTextListener, Injectable {
     private static final String EXTRA_FILE = "FILE";
     private static final String EXTRA_ACCOUNT = "ACCOUNT";
     private static final String TAG = PreviewTextFragment.class.getSimpleName();