diff --git a/src/brad/front_end/front_end.py b/src/brad/front_end/front_end.py
index 6af0b131..736f123f 100644
--- a/src/brad/front_end/front_end.py
+++ b/src/brad/front_end/front_end.py
@@ -453,8 +453,15 @@ async def _run_query_impl(
                 else:
                     connection = session.engines.get_reader_connection(engine_to_use)
                     cursor = connection.cursor_sync()
+                    # HACK: To work around dialect differences between
+                    # Athena/Aurora/Redshift for now. This should be replaced by
+                    # a more robust translation layer.
+                    if engine_to_use == Engine.Athena and "ascii" in query_rep.raw_query:
+                        translated_query = query_rep.raw_query.replace("ascii", "codepoint")
+                    else:
+                        translated_query = query_rep.raw_query
                     start = universal_now()
-                    await cursor.execute(query_rep.raw_query)
+                    await cursor.execute(translated_query)
                 end = universal_now()
             except (
                 pyodbc.ProgrammingError,