diff --git a/pd/extra/pd~/pdsched.c b/pd/extra/pd~/pdsched.c
index 235d9dc614e086e6f29d3e2b99a5b8ab59faee2b..6c6060c14a22b3fbd44591d0e24bfe6756854541 100644
--- a/pd/extra/pd~/pdsched.c
+++ b/pd/extra/pd~/pdsched.c
@@ -42,8 +42,8 @@ int pd_extern_sched(char *flags)
     t_binbuf *b = binbuf_new();
 
     sys_get_audio_params(&naudioindev, audioindev, chindev,
-        &naudiooutdev, audiooutdev, choutdev, &rate, &advance, &callback); //,
-          //  &blocksize);
+        &naudiooutdev, audiooutdev, choutdev, &rate, &advance, &callback,
+            &blocksize);
 
     chin = (naudioindev < 1 ? 0 : chindev[0]);
     chout = (naudiooutdev < 1 ? 0 : choutdev[0]);