diff --git a/bin/weewx/xtypes.py b/bin/weewx/xtypes.py
index cd2a4ecb..48fe9f83 100644
--- a/bin/weewx/xtypes.py
+++ b/bin/weewx/xtypes.py
@@ -783,7 +783,7 @@ class WindVec(XType):
             # Yes. Just use the regular series function. When it comes time to do the aggregation,
             # the specialized function WindVec.get_aggregate() (defined below), will be used.
             return ArchiveTable.get_series(obs_type, timespan, db_manager, aggregate_type,
-                                           aggregate_interval)
+                                           aggregate_interval, **option_dict)
 
         else:
             # No aggregation desired. However, we have will have to assemble the wind vector from
diff --git a/docs/changes.txt b/docs/changes.txt
index 71738073..4a954e61 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -49,6 +49,11 @@ for weewx.conf.
 Post location of configuration file to the station registry. Thanks to Vince!
 PR #705.
 
+Fix minor install warning under Python 3.10. Fixes issue #799.
+
+Fix problem where xtypes.ArchiveTable.get_series() does not pass option_dict
+on to get_aggregate(). Fixes issue #797
+
 Added copytruncate option to default log rotation configuration.  Thanks to
 user sastorsl.  Addresses PR #791.
 
diff --git a/setup.cfg b/setup.cfg
index 38532f64..5d560f5b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,6 +9,6 @@
 home = /home/weewx
 
 prefix =
-exec-prefix =
+exec_prefix =
 install_lib = %(home)s/bin
 install_scripts = %(home)s/bin