diff --git a/gtk/DetailsDialog.cc b/gtk/DetailsDialog.cc
index fd3a5ec8f..4200412ba 100644
--- a/gtk/DetailsDialog.cc
+++ b/gtk/DetailsDialog.cc
@@ -2341,6 +2341,13 @@ AddTrackerDialog::AddTrackerDialog(
     set_title(fmt::format(_("{torrent_name} - Add Tracker"), fmt::arg("torrent_name", tr_torrentName(torrent))));
     set_transient_for(parent);
 
+    auto* const accept = get_widget_for_response(TR_GTK_RESPONSE_TYPE(ACCEPT));
+#if GTKMM_CHECK_VERSION(4, 0, 0)
+    set_default_widget(*accept);
+#else
+    set_default(*accept);
+#endif
+
     gtr_paste_clipboard_url_into_entry(*url_entry_);
 }
 
diff --git a/gtk/OptionsDialog.cc b/gtk/OptionsDialog.cc
index 63463f014..06b83d511 100644
--- a/gtk/OptionsDialog.cc
+++ b/gtk/OptionsDialog.cc
@@ -427,16 +427,14 @@ TorrentUrlChooserDialog::TorrentUrlChooserDialog(
     set_transient_for(parent);
 
     auto* const e = gtr_get_widget<Gtk::Entry>(builder, "url_entry");
+    auto* const accept = get_widget_for_response(TR_GTK_RESPONSE_TYPE(ACCEPT));
     gtr_paste_clipboard_url_into_entry(*e);
 
-    signal_response().connect([this, e, core](int response) { onOpenURLResponse(response, *e, core); });
+#if GTKMM_CHECK_VERSION(4, 0, 0)
+    set_default_widget(*accept);
+#else
+    set_default(*accept);
+#endif
 
-    if (e->get_text_length() == 0)
-    {
-        e->grab_focus();
-    }
-    else
-    {
-        get_widget_for_response(TR_GTK_RESPONSE_TYPE(ACCEPT))->grab_focus();
-    }
+    signal_response().connect([this, e, core](int response) { onOpenURLResponse(response, *e, core); });
 }
diff --git a/gtk/ui/gtk3/AddTrackerDialog.ui b/gtk/ui/gtk3/AddTrackerDialog.ui
index 9a31dfe9f..399932fbe 100644
--- a/gtk/ui/gtk3/AddTrackerDialog.ui
+++ b/gtk/ui/gtk3/AddTrackerDialog.ui
@@ -34,6 +34,7 @@
                 <property name="label" translatable="yes">_Add</property>
                 <property name="visible">True</property>
                 <property name="can-focus">True</property>
+                <property name="can-default">True</property>
                 <property name="receives-default">True</property>
                 <property name="use-underline">True</property>
               </object>
@@ -94,6 +95,7 @@
                         <property name="width-request">400</property>
                         <property name="visible">True</property>
                         <property name="can-focus">True</property>
+                        <property name="activates-default">True</property>
                         <property name="hexpand">True</property>
                       </object>
                       <packing>
diff --git a/gtk/ui/gtk3/TorrentUrlChooserDialog.ui b/gtk/ui/gtk3/TorrentUrlChooserDialog.ui
index 2b71e63ad..9ad13bbc0 100644
--- a/gtk/ui/gtk3/TorrentUrlChooserDialog.ui
+++ b/gtk/ui/gtk3/TorrentUrlChooserDialog.ui
@@ -34,6 +34,7 @@
                 <property name="label" translatable="yes">_Open</property>
                 <property name="visible">True</property>
                 <property name="can-focus">True</property>
+                <property name="can-default">True</property>
                 <property name="receives-default">True</property>
                 <property name="use-underline">True</property>
               </object>
@@ -94,6 +95,7 @@
                         <property name="width-request">400</property>
                         <property name="visible">True</property>
                         <property name="can-focus">True</property>
+                        <property name="activates-default">True</property>
                         <property name="hexpand">True</property>
                       </object>
                       <packing>
diff --git a/gtk/ui/gtk4/AddTrackerDialog.ui b/gtk/ui/gtk4/AddTrackerDialog.ui
index b8b09c318..0e8937e32 100644
--- a/gtk/ui/gtk4/AddTrackerDialog.ui
+++ b/gtk/ui/gtk4/AddTrackerDialog.ui
@@ -42,6 +42,7 @@
                       <object class="GtkEntry" id="url_entry">
                         <property name="width-request">400</property>
                         <property name="focusable">1</property>
+                        <property name="activates-default">1</property>
                         <property name="hexpand">1</property>
                         <layout>
                           <property name="column">1</property>
diff --git a/gtk/ui/gtk4/TorrentUrlChooserDialog.ui b/gtk/ui/gtk4/TorrentUrlChooserDialog.ui
index fa5d576ad..a96fa6f6c 100644
--- a/gtk/ui/gtk4/TorrentUrlChooserDialog.ui
+++ b/gtk/ui/gtk4/TorrentUrlChooserDialog.ui
@@ -42,6 +42,7 @@
                       <object class="GtkEntry" id="url_entry">
                         <property name="width-request">400</property>
                         <property name="focusable">1</property>
+                        <property name="activates-default">1</property>
                         <property name="hexpand">1</property>
                         <layout>
                           <property name="column">1</property>