diff --git a/weave/trace_server/clickhouse_trace_server_batched.py b/weave/trace_server/clickhouse_trace_server_batched.py
index d100fac3a6b3..8bbae5bc45b7 100644
--- a/weave/trace_server/clickhouse_trace_server_batched.py
+++ b/weave/trace_server/clickhouse_trace_server_batched.py
@@ -1865,9 +1865,6 @@ def _insert_call(self, ch_call: CallCHInsertable) -> None:
     def _get_matched_calls_for_filters(
         self, project_id: str, call_ids: list[str]
     ) -> list[tuple[ActionDispatchFilter, str, list[tsi.CallSchema]]]:
-        # TODO: this can be lifted to the top once core's deps are updated
-        import xxhash
-
         """Helper function to get calls that match action filters.
 
         Returns a list of tuples containing (filter, matched_calls) pairs.
@@ -1938,6 +1935,9 @@ def _get_matched_calls_for_filters(
         )
         calls_res = self.calls_query(calls_query_req)
 
+        # TODO: this can be lifted to the top once core's deps are updated
+        import xxhash
+
         # Match calls to filters
         matched_filters_and_calls = []
         for filter, filter_ref in filters: