diff --git a/audio/ossaudio.c b/audio/ossaudio.c
index a29b4bc17212827b4574cc329bb98e7dbd918558..613e189db1b6ff8c8aec1f1dd31eb3e2cf43372d 100644
--- a/audio/ossaudio.c
+++ b/audio/ossaudio.c
@@ -237,7 +237,7 @@ static int oss_open (int in, struct oss_params *req,
         goto err;
     }
 
-    if (ioctl (fd, SNDCTL_DSP_NONBLOCK)) {
+    if (ioctl (fd, SNDCTL_DSP_NONBLOCK, NULL)) {
         oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n");
         goto err;
     }