diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java
index b2dec3d85..17da35e55 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java
@@ -378,7 +378,7 @@ public class ConversationActivity extends BriarActivity
 			MenuItem item = menu.findItem(R.id.action_conversation_settings);
 			item.setVisible(true);
 			// Enable menu item only if contact supports auto-delete
-			observeOnce(viewModel.getPrivateMessageFormat(), this, format ->
+			viewModel.getPrivateMessageFormat().observe(this, format ->
 					item.setEnabled(format == TEXT_IMAGES_AUTO_DELETE));
 		}