diff --git a/gtk2-c99.patch b/gtk2-c99.patch
new file mode 100644
index 0000000..c4c0060
--- /dev/null
+++ b/gtk2-c99.patch
@@ -0,0 +1,42 @@
+commit bcfc53066ae54d0adbf282d5678d9a4a7083b4d3
+Author: Javier Jardón <jjardon@gnome.org>
+Date:   Mon May 3 02:56:29 2010 +0200
+
+    tests: Too many arguments in call to 'create_menu'
+
+diff --git a/tests/testmenubars.c b/tests/testmenubars.c
+index 416a93986121d858..853d822a9b6a7925 100644
+--- a/tests/testmenubars.c
++++ b/tests/testmenubars.c
+@@ -21,7 +21,7 @@
+ #include <gtk/gtk.h>
+ 
+ static GtkWidget *
+-create_menu (depth)
++create_menu (guint depth)
+ {
+     GtkWidget *menu;
+     GtkWidget *menuitem;
+@@ -70,19 +70,19 @@ create_menubar (GtkPackDirection pack_dir,
+   menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_HOME, NULL);
+   gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
+   gtk_label_set_angle (GTK_LABEL (GTK_BIN (menuitem)->child), angle);
+-  menu = create_menu (2, TRUE);
++  menu = create_menu (2);
+   gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+ 
+   menuitem = gtk_menu_item_new_with_label ("foo");
+   gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
+   gtk_label_set_angle (GTK_LABEL (GTK_BIN (menuitem)->child), angle);
+-  menu = create_menu (2, TRUE);
++  menu = create_menu (2);
+   gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+ 
+   menuitem = gtk_menu_item_new_with_label ("bar");
+   gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
+   gtk_label_set_angle (GTK_LABEL (GTK_BIN (menuitem)->child), angle);
+-  menu = create_menu (2, TRUE);
++  menu = create_menu (2);
+   gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+ 
+   return menubar;
diff --git a/gtk2.spec b/gtk2.spec
index ec117d2..4955237 100644
--- a/gtk2.spec
+++ b/gtk2.spec
@@ -20,7 +20,7 @@
 Summary: GTK+ graphical user interface library
 Name: gtk2
 Version: 2.24.33
-Release: 13%{?dist}
+Release: 14%{?dist}
 License: LGPLv2+
 URL: http://www.gtk.org
 #VCS: git:git://git.gnome.org/gtk+#gtk-2-24
@@ -35,6 +35,7 @@ Patch2: icon-padding.patch
 Patch8: tooltip-positioning.patch
 # https://bugzilla.gnome.org/show_bug.cgi?id=611313
 Patch15: window-dragging.patch
+Patch16: gtk2-c99.patch
 
 BuildRequires: pkgconfig(atk) >= %{atk_version}
 BuildRequires: pkgconfig(glib-2.0) >= %{glib2_version}
@@ -334,6 +335,9 @@ gtk-query-immodules-2.0-%{__isa_bits} --update-cache
 %doc tmpdocs/examples
 
 %changelog
+* Tue Apr 11 2023 Florian Weimer <fweimer@redhat.com> - 2.24.33-14
+- Backport upstream patch to fix C99 compatibility issue
+
 * Wed Feb 01 2023 Yaakov Selkowitz <yselkowi@redhat.com> - 2.24.33-13
 - Make the gtk-immodules-imsettings subpackage noarch