diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -1089,10 +1089,9 @@ def resolverevlogstorevfsoptions(ui, req
     if chunkcachesize is not None:
         data_config.chunk_cache_size = chunkcachesize
 
-    deltabothparents = ui.configbool(
+    delta_config.delta_both_parents = ui.configbool(
         b'storage', b'revlog.optimize-delta-parent-choice'
     )
-    options[b'deltabothparents'] = deltabothparents
     dps_cgds = ui.configint(
         b'storage',
         b'revlog.delta-parent-search.candidate-group-chunk-size',
diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -630,8 +630,6 @@ class revlog:
 
         if b'maxchainlen' in opts:
             self.delta_config.max_chain_len = opts[b'maxchainlen']
-        if b'deltabothparents' in opts:
-            self.delta_config.delta_both_parents = opts[b'deltabothparents']
         dps_cgds = opts.get(b'delta-parent-search.candidate-group-chunk-size')
         if dps_cgds:
             self.delta_config.candidate_group_chunk_size = dps_cgds