Xapian::TermGenerator *term_gen;
     Xapian::ValueRangeProcessor *value_range_processor;
     Xapian::ValueRangeProcessor *date_range_processor;
-#if HAVE_XAPIAN_FIELD_PROCESSOR
-    Xapian::FieldProcessor *date_field_processor;
-    Xapian::FieldProcessor *query_field_processor;
-#endif
     Xapian::ValueRangeProcessor *last_mod_range_processor;
 };
 
 
 #if HAVE_XAPIAN_FIELD_PROCESSOR
        /* This currently relies on the query parser to pass anything
         * with a .. to the range processor */
-       notmuch->date_field_processor = new DateFieldProcessor();
-       notmuch->query_parser->add_boolean_prefix("date", notmuch->date_field_processor);
-       notmuch->query_field_processor = new QueryFieldProcessor (*notmuch->query_parser, notmuch);
-       notmuch->query_parser->add_boolean_prefix("query", notmuch->query_field_processor);
+       {
+           Xapian::FieldProcessor * date_fp = new DateFieldProcessor();
+           Xapian::FieldProcessor * query_fp =
+               new QueryFieldProcessor (*notmuch->query_parser, notmuch);
+
+           notmuch->query_parser->add_boolean_prefix("date", date_fp->release ());
+           notmuch->query_parser->add_boolean_prefix("query", query_fp->release ());
+       }
 #endif
        notmuch->last_mod_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_LAST_MOD, "lastmod:");
 
     delete notmuch->last_mod_range_processor;
     notmuch->last_mod_range_processor = NULL;
 
-#if HAVE_XAPIAN_FIELD_PROCESSOR
-    delete notmuch->date_field_processor;
-    notmuch->date_field_processor = NULL;
-    delete notmuch->query_field_processor;
-    notmuch->query_field_processor = NULL;
-#endif
-
     return status;
 }