diff --git a/spa/include/spa/param/audio/layout.h b/spa/include/spa/param/audio/layout.h
index dc69705b7..1868144ef 100644
--- a/spa/include/spa/param/audio/layout.h
+++ b/spa/include/spa/param/audio/layout.h
@@ -64,8 +64,8 @@ struct spa_audio_layout_info {
 					     SPA_AUDIO_CHANNEL_TRL, SPA_AUDIO_CHANNEL_TRR, }
 
 
-#define SPA_AUDIO_LAYOUT_MPEG_1_0	SPA_AUDIO_LAYOUT_MONO
-#define SPA_AUDIO_LAYOUT_MPEG_2_0	SPA_AUDIO_LAYOUT_STEREO
+#define SPA_AUDIO_LAYOUT_MPEG_1_0	SPA_AUDIO_LAYOUT_Mono
+#define SPA_AUDIO_LAYOUT_MPEG_2_0	SPA_AUDIO_LAYOUT_Stereo
 #define SPA_AUDIO_LAYOUT_MPEG_3_0A	3, { SPA_AUDIO_CHANNEL_FL, SPA_AUDIO_CHANNEL_FR, \
 					     SPA_AUDIO_CHANNEL_FC, }
 #define SPA_AUDIO_LAYOUT_MPEG_3_0B	3, { SPA_AUDIO_CHANNEL_FC, SPA_AUDIO_CHANNEL_FL, \