diff --git a/app/src/main/java/eu/faircode/email/AdapterImage.java b/app/src/main/java/eu/faircode/email/AdapterImage.java
index fca7323b4a..410d69b786 100644
--- a/app/src/main/java/eu/faircode/email/AdapterImage.java
+++ b/app/src/main/java/eu/faircode/email/AdapterImage.java
@@ -55,9 +55,9 @@ public class AdapterImage extends RecyclerView.Adapter<AdapterImage.ViewHolder>
     private List<EntityAttachment> items = new ArrayList<>();
 
     public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
-        View view;
-        ImageView image;
-        TextView caption;
+        private View view;
+        private ImageView image;
+        private TextView caption;
 
         ViewHolder(View itemView) {
             super(itemView);