diff --git a/sound/pci/oxygen/xonar_dg.h b/sound/pci/oxygen/xonar_dg.h
index d461df357aa15f203b2b60e5de98d5da864d79ea..5a07cda011b3f999faaf05a3d6ca0ce6330ee16d 100644
--- a/sound/pci/oxygen/xonar_dg.h
+++ b/sound/pci/oxygen/xonar_dg.h
@@ -51,6 +51,6 @@ void dg_suspend(struct oxygen *chip);
 void dg_resume(struct oxygen *chip);
 void dg_cleanup(struct oxygen *chip);
 
-extern struct oxygen_model model_xonar_dg;
+extern const struct oxygen_model model_xonar_dg;
 
 #endif
diff --git a/sound/pci/oxygen/xonar_dg_mixer.c b/sound/pci/oxygen/xonar_dg_mixer.c
index b885dac28a09d164a7ce9b51e52ef26e1a9cf479..d22fbe8aebd01637e2b4f33501d23d1cf09059ed 100644
--- a/sound/pci/oxygen/xonar_dg_mixer.c
+++ b/sound/pci/oxygen/xonar_dg_mixer.c
@@ -449,7 +449,7 @@ static int dg_mixer_init(struct oxygen *chip)
 	return 0;
 }
 
-struct oxygen_model model_xonar_dg = {
+const struct oxygen_model model_xonar_dg = {
 	.longname = "C-Media Oxygen HD Audio",
 	.chip = "CMI8786",
 	.init = dg_init,