diff --git a/telethon/sessions/memory.py b/telethon/sessions/memory.py
index 939f986d..42af7ad9 100644
--- a/telethon/sessions/memory.py
+++ b/telethon/sessions/memory.py
@@ -116,8 +116,6 @@ class MemorySession(Session):
                 entities.extend(tlo.chats)
             if hasattr(tlo, 'users') and utils.is_list_like(tlo.users):
                 entities.extend(tlo.users)
-            if not entities:
-                return
 
         rows = []  # Rows to add (id, hash, username, phone, name)
         for e in entities: