diff --git a/ChangeLog b/ChangeLog
index 3eb8724e1..094ef8cb5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2005-03-30  Jeroen Zwartepoorte  <jeroen@xs4all.nl>
+
+	* parser/gapi2xml.pl : parse gst type macros.
+
 2005-03-30  Anthony Taranto  <voltron@emptyrhetoric.com>
 
 	* gtk/Widget.custom : cause Allocation.Set to call SizeUpdate().
diff --git a/parser/gapi2xml.pl b/parser/gapi2xml.pl
index acc786205..ac756ddea 100755
--- a/parser/gapi2xml.pl
+++ b/parser/gapi2xml.pl
@@ -186,6 +186,8 @@ while ($line = <STDIN>) {
 			$objects{$1} = $2 . $objects{$1};
 		} elsif ($cast_macro =~ /GTK_CHECK_CLASS_CAST.*,\s*(\w+),\s*(\w+)/) {
 			$objects{$1} .= ":$2";
+		} elsif ($cast_macro =~ /GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST.*,\s*(\w+),\s*(\w+)/) {
+			$objects{$1} = $2 . $objects{$1};
 		}
 	} elsif ($line =~ /INSTANCE_GET_INTERFACE.*,\s*(\w+),\s*(\w+)/) {
 		$ifaces{$1} = $2;