diff --git a/gst/gstformat.h b/gst/gstformat.h
index 14ac687fa9..e8f8b93a01 100644
--- a/gst/gstformat.h
+++ b/gst/gstformat.h
@@ -36,7 +36,7 @@ typedef enum {
   GST_FORMAT_BUFFERS	= 4,
   GST_FORMAT_PERCENT	= 5,
   /* samples for audio, frames/fields for video */
-  GST_FORMAT_UNIT 	= 6,
+  GST_FORMAT_UNITS 	= 6,
 } GstFormat;
 
 G_END_DECLS