diff --git a/api/s1_title.py b/api/s1_title.py
index b521860..59962a0 100644
--- a/api/s1_title.py
+++ b/api/s1_title.py
@@ -33,9 +33,11 @@ class InpTitle:
 
 
 def inp_in_title(section: list[str]) -> ChangeSet:
+    if section == []:
+        return ChangeSet()
+
     obj = InpTitle(section)
-    cs = ChangeSet(g_update_prefix | {'type': 'title', 'value' : obj.value})
-    return cs
+    return ChangeSet(g_update_prefix | {'type': 'title', 'value' : obj.value})
 
 
 def inp_out_title(name: str) -> list[str]: