diff --git a/devel/rubygem-glib2/files/patch-ext_glib2_rbglib__bookmarkfile.c b/devel/rubygem-glib2/files/patch-ext_glib2_rbglib__bookmarkfile.c
new file mode 100644
index 000000000000..7fb6da0d02f4
--- /dev/null
+++ b/devel/rubygem-glib2/files/patch-ext_glib2_rbglib__bookmarkfile.c
@@ -0,0 +1,18 @@
+--- ext/glib2/rbglib_bookmarkfile.c.orig	2023-03-16 13:19:47 UTC
++++ ext/glib2/rbglib_bookmarkfile.c
+@@ -35,6 +35,7 @@ bookmarkfile_copy(const GBookmarkFile* file)
+     return (GBookmarkFile*)file;
+ }
+ 
++#if !GLIB_CHECK_VERSION(2, 76, 0)
+ static GType
+ g_bookmark_file_get_type(void)
+ {
+@@ -48,6 +49,7 @@ g_bookmark_file_get_type(void)
+ /************************************************/
+ 
+ #define G_TYPE_BOOKMARK_FILE (g_bookmark_file_get_type())
++#endif
+ 
+ #define RG_TARGET_NAMESPACE cBookmarkFile
+ #define _SELF(self) ((GBookmarkFile*)(RVAL2BOXED(self, G_TYPE_BOOKMARK_FILE)))