diff --git a/sys/dev/sound/driver.c b/sys/dev/sound/driver.c
--- a/sys/dev/sound/driver.c
+++ b/sys/dev/sound/driver.c
@@ -55,6 +55,9 @@
 DECLARE_MODULE(snd_driver, snd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
 MODULE_VERSION(snd_driver, 1);
 
+#if defined(__powerpc__)
+MODULE_DEPEND(snd_driver, snd_ai2s, 1, 1, 1);
+#endif
 MODULE_DEPEND(snd_driver, snd_als4000, 1, 1, 1);
 MODULE_DEPEND(snd_driver, snd_atiixp, 1, 1, 1);
 #if defined(__i386__) || defined(__amd64__)
@@ -63,6 +66,9 @@
 MODULE_DEPEND(snd_driver, snd_cs4281, 1, 1, 1);
 MODULE_DEPEND(snd_driver, snd_csa, 1, 1, 1);
 MODULE_DEPEND(snd_driver, snd_csapcm, 1, 1, 1);
+#if defined(__powerpc__)
+MODULE_DEPEND(snd_driver, snd_davbus, 1, 1, 1);
+#endif
 MODULE_DEPEND(snd_driver, snd_emu10kx, 1, 1, 1);
 MODULE_DEPEND(snd_driver, snd_envy24, 1, 1, 1);
 MODULE_DEPEND(snd_driver, snd_envy24ht, 1, 1, 1);