diff --git a/index.html b/index.html
index a9e952e..1783f6d 100644
--- a/index.html
+++ b/index.html
@@ -464,6 +464,12 @@ <h2>Error</h2>
                                                     
                                             </li>
                                         
+                                            <li>
+                                                
+                                                    <b>ExpectedDueToMembership:</b> E2EE domain error. Decryption failed for a message sent before you were in the room (shared history visibility and support for sharing past keys is not available/supported).
+                                                    
+                                            </li>
+                                        
                                             <li>
                                                 
                                                     <b>VoipUserHangup:</b> VOIP domain error. The user hung up the call.