diff --git a/gtypelib.c b/gtypelib.c
index 3df1918bf..cc07e96e2 100644
--- a/gtypelib.c
+++ b/gtypelib.c
@@ -113,7 +113,7 @@ validate_header (GTypelib  *metadata,
 
   header = (Header *)metadata->data;
 
-  if (strncmp (header->magic, G_IDL_MAGIC, 16) != 0)
+  if (strncmp (header->magic, G_IR_MAGIC, 16) != 0)
     {
       g_set_error (error,
 		   G_TYPELIB_ERROR,
diff --git a/gtypelib.h b/gtypelib.h
index 352c3a8ea..0152a958d 100644
--- a/gtypelib.h
+++ b/gtypelib.h
@@ -27,7 +27,7 @@
 
 G_BEGIN_DECLS
 
-#define G_IDL_MAGIC "GOBJ\nMETADATA\r\n\032"
+#define G_IR_MAGIC "GOBJ\nMETADATA\r\n\032"
 
 enum 
 {
@@ -126,7 +126,10 @@ typedef enum
   TYPE_TAG_LIST      = 22,
   TYPE_TAG_SLIST     = 23,
   TYPE_TAG_HASH      = 24,
-  TYPE_TAG_ERROR     = 25
+  TYPE_TAG_ERROR     = 25,
+  TYPE_TAG_STRING    = 26,
+  TYPE_TAG_SEQUENCE  = 27,
+  TYPE_TAG_ANY       = 28
 } TypeTag;
 
 typedef union