diff --git a/audio/audio.c b/audio/audio.c
index 9e2d7fb209..55f885f8e9 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -1804,6 +1804,7 @@ void AUD_remove_card (QEMUSoundCard *card)
     g_free (card->name);
 }
 
+static struct audio_pcm_ops capture_pcm_ops;
 
 CaptureVoiceOut *AUD_add_capture(
     AudioState *s,
@@ -1849,6 +1850,7 @@ CaptureVoiceOut *AUD_add_capture(
 
         hw = &cap->hw;
         hw->s = s;
+        hw->pcm_ops = &capture_pcm_ops;
         QLIST_INIT (&hw->sw_head);
         QLIST_INIT (&cap->cb_head);