1 files changed, 2 insertions, 2 deletions
diff --git a/gst/mpeg1sys/gstmpeg1systemencode.h b/gst/mpeg1sys/gstmpeg1systemencode.h
index 750e4292..033db82d 100644
--- a/gst/mpeg1sys/gstmpeg1systemencode.h
+++ b/gst/mpeg1sys/gstmpeg1systemencode.h
@@ -38,10 +38,10 @@ extern "C" {
 #define GST_SYSTEM_ENCODE(obj) \
   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SYSTEM_ENCODE,GstMPEG1SystemEncode))
 #define GST_SYSTEM_ENCODE_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SYSTEM_ENCODE,GstMPEG1SystemEncode))
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SYSTEM_ENCODE,GstMPEG1SystemEncodeClass))
 #define GST_IS_SYSTEM_ENCODE(obj) \
   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SYSTEM_ENCODE))
-#define GST_IS_SYSTEM_ENCODE_CLASS(obj) \
+#define GST_IS_SYSTEM_ENCODE_CLASS(klass) \
   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SYSTEM_ENCODE))
 
 typedef struct _GstMPEG1SystemEncode GstMPEG1SystemEncode;