diff --git a/mastodon/src/main/java/org/joinmastodon/android/api/requests/statuses/CreateStatus.java b/mastodon/src/main/java/org/joinmastodon/android/api/requests/statuses/CreateStatus.java
index bdb9dd14d..ef2109b83 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/api/requests/statuses/CreateStatus.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/api/requests/statuses/CreateStatus.java
@@ -17,6 +17,7 @@ public class CreateStatus extends MastodonAPIRequest<Status>{
 
 	public static class Request{
 		public String status;
+		public List<MediaAttribute> mediaAttributes;
 		public List<String> mediaIds;
 		public Poll poll;
 		public String inReplyToId;
@@ -32,5 +33,17 @@ public class CreateStatus extends MastodonAPIRequest<Status>{
 			public boolean multiple;
 			public boolean hideTotals;
 		}
+
+		public static class MediaAttribute{
+			public String id;
+			public String description;
+			public String focus;
+
+			public MediaAttribute(String id, String description, String focus){
+				this.id=id;
+				this.description=description;
+				this.focus=focus;
+			}
+		}
 	}
 }
diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java
index d4606d6ca..624133db4 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java
@@ -691,6 +691,9 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 		req.visibility=statusVisibility;
 		if(!mediaViewController.isEmpty()){
 			req.mediaIds=mediaViewController.getAttachmentIDs();
+			if(editingStatus != null){
+				req.mediaAttributes=mediaViewController.getAttachmentAttributes();
+			}
 		}
 		if(replyTo!=null){
 			req.inReplyToId=replyTo.id;
diff --git a/mastodon/src/main/java/org/joinmastodon/android/ui/viewcontrollers/ComposeMediaViewController.java b/mastodon/src/main/java/org/joinmastodon/android/ui/viewcontrollers/ComposeMediaViewController.java
index 2fade8a45..c4e50b1bb 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/ui/viewcontrollers/ComposeMediaViewController.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/ui/viewcontrollers/ComposeMediaViewController.java
@@ -27,10 +27,14 @@ import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
 import org.joinmastodon.android.MastodonApp;
 import org.joinmastodon.android.R;
 import org.joinmastodon.android.api.MastodonAPIController;
 import org.joinmastodon.android.api.ProgressListener;
+import org.joinmastodon.android.api.requests.statuses.CreateStatus;
 import org.joinmastodon.android.api.requests.statuses.GetAttachmentByID;
 import org.joinmastodon.android.api.requests.statuses.UpdateAttachment;
 import org.joinmastodon.android.api.requests.statuses.UploadAttachment;
@@ -47,8 +51,11 @@ import org.parceler.Parcel;
 import org.parceler.Parcels;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
+import java.util.ListIterator;
 import java.util.Locale;
 import java.util.Objects;
 import java.util.function.Consumer;
@@ -540,6 +547,14 @@ public class ComposeMediaViewController{
 	public List<String> getAttachmentIDs(){
 		return attachments.stream().map(a->a.serverAttachment.id).collect(Collectors.toList());
 	}
+
+	public List<CreateStatus.Request.MediaAttribute> getAttachmentAttributes(){
+		List<CreateStatus.Request.MediaAttribute> mediaAttributes = new ArrayList<>();
+		for (DraftMediaAttachment att:attachments){
+			 mediaAttributes.add(new CreateStatus.Request.MediaAttribute(att.serverAttachment.id, att.description, null));
+		}
+		return mediaAttributes;
+	}
 	
 	public boolean isEmpty(){
 		return attachments.isEmpty();
@@ -582,7 +597,7 @@ public class ComposeMediaViewController{
 	public void saveAltTextsBeforePublishing(Runnable onSuccess, Consumer<ErrorResponse> onError){
 		ArrayList<UpdateAttachment> updateAltTextRequests=new ArrayList<>();
 		for(DraftMediaAttachment att:attachments){
-			if(!att.descriptionSaved){
+			if(!att.descriptionSaved && att.serverAttachment.description == null){
 				UpdateAttachment req=new UpdateAttachment(att.serverAttachment.id, att.description);
 				req.setCallback(new Callback<>(){
 							@Override