diff --git a/chat/pack_resolver.py b/chat/pack_resolver.py
index aed28ecc..e08cdc0b 100644
--- a/chat/pack_resolver.py
+++ b/chat/pack_resolver.py
@@ -50,6 +50,7 @@ DEFAULT_RESOLVABLE_PACK_IDS: tuple[str, ...] = (
     "en_core_spatial_v1",
     "en_core_causation_v1",
     "en_core_polarity_v1",
+    "en_core_syntax_v1",
     "en_core_relations_v1",
     "en_core_relations_v2",
     # ADR-0073c — synthetic English anchor lemmas for cross-lang collapse.