diff --git a/mercurial/hgweb/webcommands.py b/mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py
+++ b/mercurial/hgweb/webcommands.py
@@ -264,8 +264,8 @@ def _search(web, req, tmpl):
             yield tmpl('searchentry',
                        parity=parity.next(),
                        author=ctx.user(),
-                       parent=webutil.parents(ctx),
-                       child=webutil.children(ctx),
+                       parent=lambda **x: webutil.parents(ctx),
+                       child=lambda **x: webutil.children(ctx),
                        changelogtag=showtags,
                        desc=ctx.description(),
                        extra=ctx.extra(),
@@ -1000,8 +1000,8 @@ def filelog(web, req, tmpl):
                       "author": iterfctx.user(),
                       "date": iterfctx.date(),
                       "rename": webutil.renamelink(iterfctx),
-                      "parent": webutil.parents(iterfctx),
-                      "child": webutil.children(iterfctx),
+                      "parent": lambda **x: webutil.parents(iterfctx),
+                      "child": lambda **x: webutil.children(iterfctx),
                       "desc": iterfctx.description(),
                       "extra": iterfctx.extra(),
                       "tags": webutil.nodetagsdict(repo, iterfctx.node()),
diff --git a/mercurial/hgweb/webutil.py b/mercurial/hgweb/webutil.py
--- a/mercurial/hgweb/webutil.py
+++ b/mercurial/hgweb/webutil.py
@@ -297,8 +297,8 @@ def changelistentry(web, ctx, tmpl):
 
     return {
         "author": ctx.user(),
-        "parent": parents(ctx, rev - 1),
-        "child": children(ctx, rev + 1),
+        "parent": lambda **x: parents(ctx, rev - 1),
+        "child": lambda **x: children(ctx, rev + 1),
         "changelogtag": showtags,
         "desc": ctx.description(),
         "extra": ctx.extra(),