diff --git a/mastodon/src/main/java/org/joinmastodon/android/ui/displayitems/NotificationHeaderStatusDisplayItem.java b/mastodon/src/main/java/org/joinmastodon/android/ui/displayitems/NotificationHeaderStatusDisplayItem.java
index 82d2e368..64beb83f 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/ui/displayitems/NotificationHeaderStatusDisplayItem.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/ui/displayitems/NotificationHeaderStatusDisplayItem.java
@@ -125,7 +125,8 @@ public class NotificationHeaderStatusDisplayItem extends StatusDisplayItem{
 		public void onBind(NotificationHeaderStatusDisplayItem item){
 			text.setText(item.text);
 			avatar.setVisibility(item.notification.type==Notification.Type.POLL ? View.GONE : View.VISIBLE);
-			// TODO use real icons
+			if(item.notification.type!=Notification.Type.POLL)
+				avatar.setContentDescription(item.parentFragment.getString(R.string.avatar_description, item.notification.account.acct));
 			icon.setImageResource(switch(item.notification.type){
 				case FAVORITE -> R.drawable.ic_star_fill1_24px;
 				case REBLOG -> R.drawable.ic_repeat_fill1_24px;
diff --git a/mastodon/src/main/java/org/joinmastodon/android/ui/photoviewer/PhotoViewerInfoSheet.java b/mastodon/src/main/java/org/joinmastodon/android/ui/photoviewer/PhotoViewerInfoSheet.java
index 0cf4211e..1e17ed32 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/ui/photoviewer/PhotoViewerInfoSheet.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/ui/photoviewer/PhotoViewerInfoSheet.java
@@ -69,6 +69,7 @@ public class PhotoViewerInfoSheet extends BottomSheet{
 		backButton.setOutlineProvider(ViewOutlineProvider.BACKGROUND);
 		backButton.setElevation(V.dp(2));
 		backButton.setAlpha(0f);
+		backButton.setContentDescription(context.getString(R.string.back));
 		backButton.setOnClickListener(v->{
 			listener.onDismissEntireViewer();
 			dismiss();
@@ -82,6 +83,7 @@ public class PhotoViewerInfoSheet extends BottomSheet{
 		infoButton.setElevation(V.dp(2));
 		infoButton.setAlpha(0f);
 		infoButton.setSelected(true);
+		infoButton.setContentDescription(context.getString(R.string.info));
 		infoButton.setOnClickListener(v->dismiss());
 
 		FrameLayout.LayoutParams lp=new FrameLayout.LayoutParams(V.dp(48), V.dp(48));