--- a/langkit/parsers.py	2022-12-08 23:09:42.178267815 +0100
+++ b/langkit/parsers.py	2022-12-08 22:33:40.755660102 +0100
@@ -1306,6 +1306,7 @@
         # ... and we want to memoize the result.
         self.cached_type = None
 
+    @property
     def can_parse_token_node(self) -> bool:
         return all(p.can_parse_token_node for p in self.parsers)