diff --git a/src/apprt/gtk-ng/class/window.zig b/src/apprt/gtk-ng/class/window.zig
index 79d7d8f53..4487825d0 100644
--- a/src/apprt/gtk-ng/class/window.zig
+++ b/src/apprt/gtk-ng/class/window.zig
@@ -616,6 +616,10 @@ pub const Window = extern struct {
     //---------------------------------------------------------------
     // Signal handlers
 
+    fn btnNewTab(_: *adw.SplitButton, self: *Window) callconv(.c) void {
+        self.performBindingAction(.new_tab);
+    }
+
     fn windowCloseRequest(
         _: *gtk.Window,
         self: *Self,
@@ -1087,6 +1091,7 @@ pub const Window = extern struct {
             class.bindTemplateChildPrivate("toast_overlay", .{});
 
             // Template Callbacks
+            class.bindTemplateCallback("new_tab", &btnNewTab);
             class.bindTemplateCallback("close_request", &windowCloseRequest);
             class.bindTemplateCallback("close_page", &tabViewClosePage);
             class.bindTemplateCallback("page_attached", &tabViewPageAttached);
diff --git a/src/apprt/gtk-ng/ui/1.5/window.blp b/src/apprt/gtk-ng/ui/1.5/window.blp
index cefabc91f..1026a9f66 100644
--- a/src/apprt/gtk-ng/ui/1.5/window.blp
+++ b/src/apprt/gtk-ng/ui/1.5/window.blp
@@ -35,6 +35,7 @@ template $GhosttyWindow: Adw.ApplicationWindow {
 
         [start]
         Adw.SplitButton {
+          clicked => $new_tab();
           icon-name: "tab-new-symbolic";
           tooltip-text: _("New Tab");
           dropdown-tooltip: _("New Split");
diff --git a/valgrind.supp b/valgrind.supp
index 724a829d2..75a28ba4b 100644
--- a/valgrind.supp
+++ b/valgrind.supp
@@ -146,8 +146,8 @@
    GDK GLArea
    Memcheck:Leak
    match-leak-kinds: possible
-   fun:malloc
-   fun:g_malloc
+   fun:*alloc
+   ...
    fun:gdk_memory_texture_from_texture
    fun:gdk_gl_texture_release
    fun:delete_one_texture