diff --git a/gtk/genmarshal.pl b/gtk/genmarshal.pl
index 4518be64c78be170ebeb2b82c9eee3bbcf304310..dc4ce54d64de2913cf89f1e5dd9d1a3aa1e5da44 100755
--- a/gtk/genmarshal.pl
+++ b/gtk/genmarshal.pl
@@ -11,7 +11,7 @@
 	   "BOXED"=>"gpointer", "FOREIGN"=>"gpointer",
 	   "CALLBACK"=>"gpointer", "POINTER"=>"gpointer",
 	   "ARGS"=>"gpointer", "SIGNAL"=>"gpointer",
-	   "C_CALLBACK"=>"gpointer");
+	   "C_CALLBACK"=>"gpointer", "OBJECT"=>"gpointer");
 
 open(IL, "<".$ENV{'srcdir'}."/gtkmarshal.list") || die("Open failed: $!");
 open(OH, "|indent >".$ENV{'srcdir'}."/gtkmarshal.h") || die("Open failed: $!");