diff --git a/src/db/db/gsiDeclDbLayoutToNetlist.cc b/src/db/db/gsiDeclDbLayoutToNetlist.cc
index eab15bca5..dc65068cc 100644
--- a/src/db/db/gsiDeclDbLayoutToNetlist.cc
+++ b/src/db/db/gsiDeclDbLayoutToNetlist.cc
@@ -329,7 +329,7 @@ Class<db::LayoutToNetlist> decl_dbLayoutToNetlist ("db", "LayoutToNetlist",
   gsi::method ("global_net_name", &db::LayoutToNetlist::global_net_name, gsi::arg ("global_net_id"),
     "@brief Gets the global net name for the given global net ID."
   ) +
-  gsi::method ("extract_netlist", &db::LayoutToNetlist::extract_netlist, gsi::arg ("join_net_names", std::string ()), gsi::arg ("include_floating_subcircuits", false),
+  gsi::method ("extract_netlist", &db::LayoutToNetlist::extract_netlist, gsi::arg ("join_net_names", std::string (), "\"\""), gsi::arg ("include_floating_subcircuits", false),
     "@brief Runs the netlist extraction\n"
     "'join_net_names' is a glob expression for labels. Nets on top level carrying the same label which matches this glob "
     "expression will be connected implicitly even if there is no physical connection. This feature is useful to simulate a connection "
@@ -359,12 +359,14 @@ Class<db::LayoutToNetlist> decl_dbLayoutToNetlist ("db", "LayoutToNetlist",
     "@brief Runs the netlist extraction\n"
     "This method runs the netlist extraction like the two-parameter version. In addition to the latter, this method "
     "can be given a per-cell net label joining specification in 'join_net_names_per_cell'. The keys of this array "
-    "are cell names or cell names or cell name match expressions (glob style). The values are lable match expressions.\n"
+    "are cell names or cell names or cell name match expressions (glob style). The values are label match expressions.\n"
     "\n"
     "If not an empty string, the 'join_net_names' label match expression is applied to the top cell. For all non-top cells "
     "the per-cell label match expression is applied and determines what labels are joined into single nets. "
     "As the keys of 'join_net_names_per_cell' are glob expressions, a single cell may fall into more than one category. In this "
-    "case, the label match pattern are combined. In any case, the 'join_net_names' has priority for the top cell."
+    "case, the label match pattern are combined. In any case, the 'join_net_names' has priority for the top cell.\n"
+    "\n"
+    "This variant of 'extract_netlist' has been introduced in version 0.26.2."
   ) +
   gsi::method_ext ("internal_layout", &l2n_internal_layout,
     "@brief Gets the internal layout\n"
diff --git a/src/lay/lay/layGSIHelpProvider.cc b/src/lay/lay/layGSIHelpProvider.cc
index ee14780c4..48121cd71 100644
--- a/src/lay/lay/layGSIHelpProvider.cc
+++ b/src/lay/lay/layGSIHelpProvider.cc
@@ -796,7 +796,6 @@ method_arguments (const gsi::MethodBase *method, const gsi::ClassBase *cls_obj,
         if (i > 0) {
           r += ",";
           r += sep;
-          r += "&nbsp;";
         }
         r += escape_xml (doc.args [i]);
       }
@@ -816,7 +815,6 @@ method_arguments (const gsi::MethodBase *method, const gsi::ClassBase *cls_obj,
       if (n > 0) {
         r += ",";
         r += sep;
-        r += "&nbsp;";
       }
       r += type_to_s (*a, linked, false);
       r += " ";
@@ -1312,7 +1310,7 @@ GSIHelpProvider::produce_class_doc (const std::string &cls) const
     if (! attr.empty ()) {
       os << "<i>[" << escape_xml (attr) << "] </i>";
     }
-    os << method_return (i->second.first, method_doc, true) << " <b> " << escape_xml (i->first) << " </b> " << method_arguments (i->second.first, cls_obj, method_doc, true, "");
+    os << method_return (i->second.first, method_doc, true) << " <b> " << escape_xml (i->first) << " </b> " << method_arguments (i->second.first, cls_obj, method_doc, true, " ");
     os << "</p>" << std::endl;
 
     os << "<p><b>" << tl::to_string (QObject::tr ("Description")) << "</b>: " << replace_references (escape_xml (method_doc.brief_doc), cls_obj) << "</p>" << std::endl;