diff --git a/subprojects/gst-plugins-base/gst-libs/gst/audio/gstdsdformat.h b/subprojects/gst-plugins-base/gst-libs/gst/audio/gstdsdformat.h
index b5c97143d9..93f6b22754 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/audio/gstdsdformat.h
+++ b/subprojects/gst-plugins-base/gst-libs/gst/audio/gstdsdformat.h
@@ -32,13 +32,13 @@ G_BEGIN_DECLS
 
 /**
  * GstDsdFormat:
- * @GST_NUM_DSD_FORMATS: number of valid DSD formats
  * @GST_DSD_FORMAT_UNKNOWN: unknown / invalid DSD format
  * @GST_DSD_FORMAT_U8: 8 DSD bits in 1 byte
  * @GST_DSD_FORMAT_U16LE: 16 DSD bits in 2 bytes, little endian order
  * @GST_DSD_FORMAT_U16BE: 16 DSD bits in 2 bytes, big endian order
  * @GST_DSD_FORMAT_U32LE: 32 DSD bits in 4 bytes, little endian order
  * @GST_DSD_FORMAT_U32BE: 32 DSD bits in 4 bytes, big endian order
+ * @GST_NUM_DSD_FORMATS: number of valid DSD formats
  * @GST_DSD_FORMAT_U16: 16 DSD bits in 2 bytes, native endianness
  * @GST_DSD_FORMAT_U32: 32 DSD bits in 4 bytes, native endianness
  *
@@ -47,6 +47,7 @@ G_BEGIN_DECLS
  * Since: 1.24
  */
 typedef enum {
+  GST_DSD_FORMAT_UNKNOWN = -1,
   GST_DSD_FORMAT_U8 = 0,
   GST_DSD_FORMAT_U16LE,
   GST_DSD_FORMAT_U16BE,
@@ -55,8 +56,6 @@ typedef enum {
 
   GST_NUM_DSD_FORMATS,
 
-  GST_DSD_FORMAT_UNKNOWN = 0xffffffff,
-
   /* native endianness equivalents */
   GST_DSD_FORMAT_U16 = _GST_DSD_FORMAT_NE(U16),
   GST_DSD_FORMAT_U32 = _GST_DSD_FORMAT_NE(U32)