diff --git a/pep-0622.rst b/pep-0622.rst
index f6b2ba095..4c4139bb3 100644
--- a/pep-0622.rst
+++ b/pep-0622.rst
@@ -188,7 +188,7 @@ sequence. With the proposal in this PEP, we could rewrite that code
 into this::
 
     match value:
-        case [*v, label := (Promise() | str())]:
+        case [*v, label := (Promise() | str())] if v:
             value = tuple(v)
         case _:
             label = key.replace('_', ' ').title()